Acetaminophen, also known as paracetamol in some countries, is a common over-the-counter pain reliever and fever reducer.
. It is often used to alleviate various types of pain, such as headaches, muscle aches, arthritis, and dental pain, as well as to reduce fever associated with illnesses like the common cold and flu.
Here are some key points about acetaminophen:
1. Mechanism of Action: The exact mechanism by which acetaminophen works is not completely understood, but it is believed to primarily act in the central nervous system to reduce the perception of pain and lower fever by affecting certain areas of the brain.
2. Over-the-Counter Availability: Acetaminophen is available without a prescription and can be found in various forms, including tablets, capsules, liquid suspensions, and even in combination with other medications in cold and flu remedies.
3. Common Uses:
- Pain Relief: It is often used to relieve mild to moderate pain, including headaches, back pain, and toothaches.
- Fever Reduction: Acetaminophen is effective at reducing fever associated with various illnesses.
- Osteoarthritis and Musculoskeletal Conditions: It may be used as part of a treatment plan for individuals with osteoarthritis and certain musculoskeletal conditions.
4. Recommended Dosage: The appropriate dosage of acetaminophen depends on the individual’s age and weight. It’s crucial to follow the dosing instructions provided on the medication label or as prescribed by a healthcare professional.
5. Potential Side Effects: When taken at the recommended doses, acetaminophen is generally considered safe. However, excessive or prolonged use can lead to liver damage. Allergic reactions and other side effects are possible, but relatively rare.
6. Interactions: Acetaminophen can interact with other medications and substances, as mentioned in the previous response.
7. Safety Considerations: It’s essential to use acetaminophen responsibly and not exceed the recommended dose. People with certain medical conditions or taking other medications should consult with a healthcare provider before using acetaminophen.
8. Overdose Risk: Acetaminophen overdose can be very harmful to the liver and can even be life-threatening. It’s vital to be aware of the maximum daily dose and avoid taking multiple acetaminophen-containing products simultaneously.
What are the Interactions of Acetaminophen ?
It is generally considered safe when taken at recommended doses, but it can interact with other medications, substances, or medical conditions, potentially causing adverse effects or reducing its effectiveness.
Here are some common interactions associated with acetaminophen:
- Alcohol: Combining acetaminophen with alcohol can increase the risk of liver damage, as both can be metabolized by the liver. Chronic alcohol use and high doses of acetaminophen can be particularly harmful to the liver.
- Other Over-the-Counter Medications: Be cautious when taking multiple medications, as some over-the-counter products, like cold or flu remedies, may contain acetaminophen. This can lead to unintentional acetaminophen overdose if you’re not aware of the total amount you’re taking.
- Prescription Medications: Some prescription drugs can interact with acetaminophen. For example, medications that affect liver enzymes can influence how acetaminophen is metabolized. Always consult with your healthcare provider to ensure there are no harmful interactions with your specific prescription medications.
- Chronic Use and Liver Conditions: Long-term or high-dose use of acetaminophen can harm the liver, and this risk is heightened if you have liver disease or conditions like hepatitis.
- Warfarin (Coumadin): Acetaminophen can affect the way warfarin, a blood thinner, works. It may increase the risk of bleeding when taken in combination with warfarin. Be sure to inform your healthcare provider if you are taking both medications.
- Interactions with Certain Antiepileptic Drugs: Some antiepileptic medications, like carbamazepine, phenytoin, and phenobarbital, may affect the metabolism of acetaminophen, potentially reducing its effectiveness.
- Specific Medical Conditions: If you have certain medical conditions, such as G6PD deficiency or chronic alcoholism, you may be more vulnerable to acetaminophen-related complications. It’s essential to discuss your medical history with your healthcare provider.
To ensure your safety when taking acetaminophen, it’s crucial to:
- Follow dosing instructions carefully.
- Consult with a healthcare professional if you have any underlying medical conditions or are taking other medications.
- Avoid excessive or long-term use.
- Be aware of the acetaminophen content in other medications you may be taking concurrently.
The Interactions of Prescriptions and OTC Medications With Acetaminophen
Cholic Acid | The serum concentration of Acetaminophen can be decreased when it is combined with Cholic Acid. | Approved |
Cholestyramine | Cholestyramine can cause a decrease in the absorption of Acetaminophen resulting in a reduced serum concentration and potentially a decrease in efficacy. | Approved |
Cholesterol | The serum concentration of Acetaminophen can be increased when it is combined with Cholesterol. | Experimental |
Cholecalciferol | The metabolism of Acetaminophen can be decreased when combined with Cholecalciferol. | Approved, Nutraceutical |
Chlorprothixene | The serum concentration of Acetaminophen can be increased when it is combined with Chlorprothixene. | Approved, Withdrawn |
Chlorpropamide | The serum concentration of Acetaminophen can be increased when it is combined with Chlorpropamide. | Approved |
Chlorpromazine | The serum concentration of Acetaminophen can be increased when it is combined with Chlorpromazine. | Approved, Vet Approved |
Chloroquine | The serum concentration of Acetaminophen can be increased when it is combined with Chloroquine. | Approved, Vet Approved |
Cerivastatin | The serum concentration of Cerivastatin can be increased when it is combined with Acetaminophen. | Withdrawn |
Ceritinib | The serum concentration of Acetaminophen can be increased when it is combined with Ceritinib. | Approved |
Celecoxib | The metabolism of Acetaminophen can be decreased when combined with Celecoxib. | Approved, Investigational |
Caspofungin | The serum concentration of Acetaminophen can be increased when it is combined with Caspofungin. | Approved |
Carvedilol | The serum concentration of Acetaminophen can be increased when it is combined with Carvedilol. | Approved, Investigational |
Carfilzomib | The serum concentration of Carfilzomib can be increased when it is combined with Acetaminophen. | Approved |
Carbamazepine | The metabolism of Acetaminophen can be increased when combined with Carbamazepine. | Approved, Investigational |
Captopril | The serum concentration of Acetaminophen can be increased when it is combined with Captopril. | Approved |
Capecitabine | The metabolism of Acetaminophen can be decreased when combined with Capecitabine. | Approved, Investigational |
Candesartan | The serum concentration of Acetaminophen can be increased when it is combined with Candesartan. | Approved |
Canagliflozin | The serum concentration of Canagliflozin can be increased when it is combined with Acetaminophen. | Approved |
Camptothecin | The serum concentration of Camptothecin can be increased when it is combined with Acetaminophen. | Experimental |
Caffeine | The serum concentration of Caffeine can be increased when it is combined with Acetaminophen. | Approved |
Cabazitaxel | The serum concentration of Cabazitaxel can be increased when it is combined with Acetaminophen. | Approved |
Busulfan | The serum concentration of Busulfan can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Buspirone | The serum concentration of Acetaminophen can be increased when it is combined with Buspirone. | Approved, Investigational |
Bupropion | The metabolism of Acetaminophen can be decreased when combined with Bupropion. | Approved |
Buprenorphine | The serum concentration of Acetaminophen can be increased when it is combined with Buprenorphine. | Approved, Illicit, Investigational, Vet Approved |
Bromocriptine | The serum concentration of Bromocriptine can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Brentuximab vedotin | The serum concentration of Brentuximab vedotin can be increased when it is combined with Acetaminophen. | Approved |
Bosutinib | The serum concentration of Bosutinib can be increased when it is combined with Acetaminophen. | Approved |
Bosentan | The serum concentration of Acetaminophen can be decreased when it is combined with Bosentan. | Approved, Investigational |
Bortezomib | The metabolism of Acetaminophen can be decreased when combined with Bortezomib. | Approved, Investigational |
Boceprevir | The metabolism of Acetaminophen can be decreased when combined with Boceprevir. | Approved |
Biperiden | The serum concentration of Acetaminophen can be increased when it is combined with Biperiden. | Approved |
Bexarotene | The serum concentration of Acetaminophen can be decreased when it is combined with Bexarotene. | Approved, Investigational |
Betaxolol | The metabolism of Acetaminophen can be decreased when combined with Betaxolol. | Approved |
Betamethasone | The serum concentration of Betamethasone can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Bepridil | The serum concentration of Acetaminophen can be increased when it is combined with Bepridil. | Approved, Withdrawn |
Benzocaine | The serum concentration of Acetaminophen can be increased when it is combined with Benzocaine. | Approved |
Barbital | The metabolism of Acetaminophen can be increased when combined with Barbital. | Illicit |
Barbexaclone | The metabolism of Acetaminophen can be increased when combined with Barbexaclone. | Experimental |
Azithromycin | The serum concentration of Acetaminophen can be increased when it is combined with Azithromycin. | Approved |
Azelastine | The serum concentration of Acetaminophen can be increased when it is combined with Azelastine. | Approved |
Axitinib | The serum concentration of Axitinib can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Atorvastatin | The serum concentration of Acetaminophen can be increased when it is combined with Atorvastatin. | Approved |
Atomoxetine | The metabolism of Acetaminophen can be decreased when combined with Atomoxetine. | Approved |
Atenolol | The serum concentration of Atenolol can be increased when it is combined with Acetaminophen. | Approved |
Atazanavir | The metabolism of Acetaminophen can be decreased when combined with Atazanavir. | Approved, Investigational |
Astemizole | The serum concentration of Acetaminophen can be increased when it is combined with Astemizole. | Approved, Withdrawn |
Artemether | The metabolism of Acetaminophen can be decreased when combined with Artemether. | Approved |
Arsenic trioxide | The serum concentration of Arsenic trioxide can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Aripiprazole | The serum concentration of Aripiprazole can be decreased when it is combined with Acetaminophen. | Approved, Investigational |
Aprepitant | The serum concentration of Acetaminophen can be increased when it is combined with Aprepitant. | Approved, Investigational |
Apixaban | The serum concentration of Apixaban can be increased when it is combined with Acetaminophen. | Approved |
Amsacrine | The serum concentration of Acetaminophen can be increased when it is combined with Amsacrine. | Approved |
Amprenavir | The serum concentration of Acetaminophen can be decreased when it is combined with Amprenavir. | Approved |
Amobarbital | The metabolism of Acetaminophen can be increased when combined with Amobarbital. | Approved, Illicit |
Amlodipine | The serum concentration of Acetaminophen can be increased when it is combined with Amlodipine. | Approved |
Amitriptyline | The serum concentration of Amitriptyline can be increased when it is combined with Acetaminophen. | Approved |
Amiodarone | The metabolism of Acetaminophen can be decreased when combined with Amiodarone. | Approved, Investigational |
Aminohippuric acid | The serum concentration of Acetaminophen can be increased when it is combined with Aminohippuric acid. | Approved |
Ambrisentan | The serum concentration of Ambrisentan can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Amantadine | The serum concentration of Acetaminophen can be increased when it is combined with Amantadine. | Approved |
Alitretinoin | The serum concentration of Alitretinoin can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Alfentanil | The serum concentration of Acetaminophen can be increased when it is combined with Alfentanil. | Approved, Illicit |
Alectinib | The serum concentration of Acetaminophen can be increased when it is combined with Alectinib. | Approved |
Aldosterone | The serum concentration of Acetaminophen can be decreased when it is combined with Aldosterone. | Experimental |
Albendazole | The serum concentration of Acetaminophen can be increased when it is combined with Albendazole. | Approved, Vet Approved |
Afatinib | The serum concentration of Afatinib can be increased when it is combined with Acetaminophen. | Approved |
Acetylsalicylic acid | The serum concentration of Acetylsalicylic acid can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Acenocoumarol | Acetaminophen may increase the anticoagulant activities of Acenocoumarol. | Approved |
Acebutolol | The serum concentration of Acebutolol can be increased when it is combined with Acetaminophen. | Approved |
Abiraterone | The serum concentration of Acetaminophen can be increased when it is combined with Abiraterone. | Approved |
Ezetimibe | The serum concentration of Ezetimibe can be increased when it is combined with Acetaminophen. | Approved |
Everolimus | The serum concentration of Everolimus can be increased when it is combined with Acetaminophen. | Approved |
Etravirine | The serum concentration of Acetaminophen can be decreased when it is combined with Etravirine. | Approved |
Etoposide | The serum concentration of Acetaminophen can be increased when it is combined with Etoposide. | Approved |
Ethyl biscoumacetate | Acetaminophen may increase the anticoagulant activities of Ethyl biscoumacetate. | Withdrawn |
Ethinyl Estradiol | The serum concentration of Ethinyl Estradiol can be increased when it is combined with Acetaminophen. | Approved |
Ethanol | Ethanol may increase the hepatotoxic activities of Acetaminophen. | Approved |
Estrone | The serum concentration of Acetaminophen can be decreased when it is combined with Estrone. | Approved |
Estriol | The serum concentration of Acetaminophen can be decreased when it is combined with Estriol. | Approved, Vet Approved |
Estramustine | The serum concentration of Acetaminophen can be increased when it is combined with Estramustine. | Approved |
Estradiol | The serum concentration of Estradiol can be increased when it is combined with Acetaminophen. | Approved, Investigational, Vet Approved |
Eslicarbazepine acetate | The serum concentration of Acetaminophen can be decreased when it is combined with Eslicarbazepine acetate. | Approved |
Erythromycin | The metabolism of Acetaminophen can be decreased when combined with Erythromycin. | Approved, Vet Approved |
Erlotinib | The serum concentration of Erlotinib can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Ergotamine | The serum concentration of Acetaminophen can be increased when it is combined with Ergotamine. | Approved |
Ergonovine | The serum concentration of Acetaminophen can be increased when it is combined with Ergonovine. | Approved |
Epinastine | The serum concentration of Epinastine can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Enzalutamide | The serum concentration of Acetaminophen can be decreased when it is combined with Enzalutamide. | Approved |
Enalapril | The serum concentration of Acetaminophen can be increased when it is combined with Enalapril. | Approved, Vet Approved |
Eliglustat | The metabolism of Acetaminophen can be decreased when combined with Eliglustat. | Approved |
Eletriptan | The serum concentration of Eletriptan can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Elbasvir | The serum concentration of Acetaminophen can be increased when it is combined with Elbasvir. | Approved |
Efavirenz | The serum concentration of Acetaminophen can be decreased when it is combined with Efavirenz. | Approved, Investigational |
Edoxaban | The serum concentration of Edoxaban can be increased when it is combined with Acetaminophen. | Approved |
Duloxetine | The metabolism of Acetaminophen can be decreased when combined with Duloxetine. | Approved |
Dronedarone | The metabolism of Acetaminophen can be decreased when combined with Dronedarone. | Approved |
Dronabinol | The serum concentration of Acetaminophen can be increased when it is combined with Dronabinol. | Approved, Illicit |
Doxycycline | The metabolism of Acetaminophen can be decreased when combined with Doxycycline. | Approved, Investigational, Vet Approved |
Doxorubicin | The serum concentration of Doxorubicin can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Doxorubicin | The serum concentration of Acetaminophen can be decreased when it is combined with Doxorubicin. | Approved, Investigational |
Doxepin | The serum concentration of Acetaminophen can be increased when it is combined with Doxepin. | Approved |
Doxazosin | The serum concentration of Acetaminophen can be increased when it is combined with Doxazosin. | Approved |
Domperidone | The serum concentration of Domperidone can be increased when it is combined with Acetaminophen. | Approved, Investigational, Vet Approved |
Docetaxel | The serum concentration of Docetaxel can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Disulfiram | The metabolism of Acetaminophen can be decreased when combined with Disulfiram. | Approved |
Dipyridamole | The serum concentration of Acetaminophen can be increased when it is combined with Dipyridamole. | Approved |
Diphenhydramine | The metabolism of Acetaminophen can be decreased when combined with Diphenhydramine. | Approved |
Diltiazem | The metabolism of Acetaminophen can be decreased when combined with Diltiazem. | Approved |
Dihydrotestosterone | The serum concentration of Dihydrotestosterone can be increased when it is combined with Acetaminophen. | Illicit |
Dihydroergotamine | The metabolism of Acetaminophen can be decreased when combined with Dihydroergotamine. | Approved |
Digoxin | The serum concentration of Acetaminophen can be decreased when it is combined with Digoxin. | Approved |
Digitoxin | The serum concentration of Digitoxin can be increased when it is combined with Acetaminophen. | Approved |
Diethylstilbestrol | The serum concentration of Diethylstilbestrol can be increased when it is combined with Acetaminophen. | Approved |
Dicoumarol | Acetaminophen may increase the anticoagulant activities of Dicoumarol. | Approved |
Diclofenac | The serum concentration of Acetaminophen can be increased when it is combined with Diclofenac. | Approved, Vet Approved |
Diazepam | The serum concentration of Diazepam can be increased when it is combined with Acetaminophen. | Approved, Illicit, Vet Approved |
Dextromethorphan | The serum concentration of Acetaminophen can be increased when it is combined with Dextromethorphan. | Approved |
Dexamethasone | The serum concentration of Acetaminophen can be decreased when it is combined with Dexamethasone. | Approved, Investigational, Vet Approved |
Desloratadine | The serum concentration of Acetaminophen can be increased when it is combined with Desloratadine. | Approved, Investigational |
Desipramine | The serum concentration of Acetaminophen can be increased when it is combined with Desipramine. | Approved |
Delavirdine | The metabolism of Acetaminophen can be decreased when combined with Delavirdine. | Approved |
Deferasirox | The serum concentration of Acetaminophen can be decreased when it is combined with Deferasirox. | Approved, Investigational |
Debrisoquin | The serum concentration of Debrisoquin can be increased when it is combined with Acetaminophen. | Approved |
Daunorubicin | The serum concentration of Acetaminophen can be decreased when it is combined with Daunorubicin. | Approved |
Dasatinib | Acetaminophen may increase the hepatotoxic activities of Dasatinib. | Approved, Investigational |
Darunavir | The serum concentration of Acetaminophen can be increased when it is combined with Darunavir. | Approved |
Darifenacin | The metabolism of Acetaminophen can be decreased when combined with Darifenacin. | Approved, Investigational |
Dapsone | The risk or severity of adverse effects can be increased when Dapsone is combined with Acetaminophen. | Approved, Investigational |
Dapagliflozin | The serum concentration of Dapagliflozin can be increased when it is combined with Acetaminophen. | Approved |
Dactinomycin | The serum concentration of Acetaminophen can be increased when it is combined with Dactinomycin. | Approved |
Daclatasvir | The serum concentration of Acetaminophen can be increased when it is combined with Daclatasvir. | Approved |
Dabrafenib | The serum concentration of Acetaminophen can be decreased when it is combined with Dabrafenib. | Approved |
Dabigatran etexilate | The serum concentration of the active metabolites of Dabigatran etexilate can be increased when Dabigatran etexilate is used in combination with Acetaminophen. | Approved |
Cyproterone acetate | The serum concentration of Acetaminophen can be decreased when it is combined with Cyproterone acetate. | Approved, Investigational |
Cyclosporine | The metabolism of Acetaminophen can be decreased when combined with Cyclosporine. | Approved, Investigational, Vet Approved |
Cyclophosphamide | The serum concentration of Acetaminophen can be increased when it is combined with Cyclophosphamide. | Approved, Investigational |
Crizotinib | The metabolism of Acetaminophen can be decreased when combined with Crizotinib. | Approved |
Conjugated Equine Estrogens | The serum concentration of Conjugated Equine Estrogens can be increased when it is combined with Acetaminophen. | Approved |
Conivaptan | The serum concentration of Acetaminophen can be increased when it is combined with Conivaptan. | Approved, Investigational |
Colforsin | The serum concentration of Acetaminophen can be increased when it is combined with Colforsin. | Experimental |
Colchicine | The serum concentration of Colchicine can be increased when it is combined with Acetaminophen. | Approved |
Cocaine | The metabolism of Acetaminophen can be decreased when combined with Cocaine. | Approved, Illicit |
Cobimetinib | The serum concentration of Cobimetinib can be increased when it is combined with Acetaminophen. | Approved |
Cobicistat | The serum concentration of Acetaminophen can be increased when it is combined with Cobicistat. | Approved |
Clozapine | The serum concentration of Clozapine can be increased when it is combined with Acetaminophen. | Approved |
Clotrimazole | The metabolism of Acetaminophen can be decreased when combined with Clotrimazole. | Approved, Vet Approved |
Clopidogrel | The metabolism of Acetaminophen can be decreased when combined with Clopidogrel. | Approved, Nutraceutical |
Clonidine | The serum concentration of Clonidine can be increased when it is combined with Acetaminophen. | Approved |
Clomipramine | The serum concentration of Acetaminophen can be increased when it is combined with Clomipramine. | Approved, Vet Approved |
Clomifene | The serum concentration of Clomifene can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Clofazimine | The serum concentration of Acetaminophen can be increased when it is combined with Clofazimine. | Approved, Investigational |
Clobazam | The serum concentration of Clobazam can be increased when it is combined with Acetaminophen. | Approved, Illicit |
Clemastine | The metabolism of Acetaminophen can be decreased when combined with Clemastine. | Approved |
Clarithromycin | The metabolism of Acetaminophen can be decreased when combined with Clarithromycin. | Approved |
Citalopram | The serum concentration of Citalopram can be increased when it is combined with Acetaminophen. | Approved |
Cisplatin | The serum concentration of Cisplatin can be increased when it is combined with Acetaminophen. | Approved |
Ciprofloxacin | The serum concentration of Acetaminophen can be increased when it is combined with Ciprofloxacin. | Approved, Investigational |
Cinacalcet | The metabolism of Acetaminophen can be decreased when combined with Cinacalcet. | Approved |
Cimetidine | The serum concentration of Acetaminophen can be decreased when it is combined with Cimetidine. | Approved |
Cilazapril | The serum concentration of Acetaminophen can be increased when it is combined with Cilazapril. | Approved |
Ziprasidone | The metabolism of Acetaminophen can be decreased when combined with Ziprasidone. | Approved |
Zimelidine | The serum concentration of Acetaminophen can be increased when it is combined with Zimelidine. | Withdrawn |
Zidovudine | The serum concentration of Zidovudine can be increased when it is combined with Acetaminophen. | Approved |
Zafirlukast | The metabolism of Acetaminophen can be decreased when combined with Zafirlukast. | Approved, Investigational |
Warfarin | Acetaminophen may increase the anticoagulant activities of Warfarin. | Approved |
Voriconazole | The metabolism of Acetaminophen can be decreased when combined with Voriconazole. | Approved, Investigational |
Vismodegib | The serum concentration of Vismodegib can be increased when it is combined with Acetaminophen. | Approved |
Vinorelbine | The serum concentration of Acetaminophen can be increased when it is combined with Vinorelbine. | Approved, Investigational |
Vincristine | The serum concentration of Vincristine can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Vincristine | The serum concentration of Acetaminophen can be decreased when it is combined with Vincristine. | Approved, Investigational |
Vinblastine | The serum concentration of Acetaminophen can be decreased when it is combined with Vinblastine. | Approved |
Verapamil | The metabolism of Acetaminophen can be decreased when combined with Verapamil. | Approved |
Venlafaxine | The metabolism of Acetaminophen can be decreased when combined with Venlafaxine. | Approved |
Venetoclax | The serum concentration of Venetoclax can be increased when it is combined with Acetaminophen. | Approved |
Vemurafenib | The serum concentration of Acetaminophen can be increased when it is combined with Vemurafenib. | Approved |
Vecuronium | The serum concentration of Vecuronium can be increased when it is combined with Acetaminophen. | Approved |
Valsartan | The metabolism of Acetaminophen can be decreased when combined with Valsartan. | Approved, Investigational |
Valproic Acid | The metabolism of Acetaminophen can be decreased when combined with Valproic Acid. | Approved, Investigational |
Umeclidinium | The serum concentration of Umeclidinium can be increased when it is combined with Acetaminophen. | Approved |
Ulipristal | The serum concentration of Ulipristal can be increased when it is combined with Acetaminophen. | Approved |
Troleandomycin | The serum concentration of Acetaminophen can be increased when it is combined with Troleandomycin. | Approved |
Trimipramine | The serum concentration of Acetaminophen can be increased when it is combined with Trimipramine. | Approved |
Trimethoprim | The serum concentration of Acetaminophen can be decreased when it is combined with Trimethoprim. | Approved, Vet Approved |
Triflupromazine | The serum concentration of Acetaminophen can be increased when it is combined with Triflupromazine. | Approved, Vet Approved |
Trifluoperazine | The serum concentration of Acetaminophen can be increased when it is combined with Trifluoperazine. | Approved |
Trazodone | The serum concentration of Acetaminophen can be decreased when it is combined with Trazodone. | Approved, Investigational |
Trastuzumab emtansine | The serum concentration of Trastuzumab emtansine can be increased when it is combined with Acetaminophen. | Approved |
Tranylcypromine | The metabolism of Acetaminophen can be decreased when combined with Tranylcypromine. | Approved |
Toremifene | The serum concentration of Toremifene can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Topotecan | The serum concentration of Topotecan can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Tolvaptan | The serum concentration of Tolvaptan can be increased when it is combined with Acetaminophen. | Approved |
Tolbutamide | The metabolism of Acetaminophen can be decreased when combined with Tolbutamide. | Approved |
Tocilizumab | The serum concentration of Acetaminophen can be decreased when it is combined with Tocilizumab. | Approved |
Tipranavir | The metabolism of Acetaminophen can be decreased when combined with Tipranavir. | Approved, Investigational |
Timolol | The serum concentration of Timolol can be increased when it is combined with Acetaminophen. | Approved |
Ticlopidine | The metabolism of Acetaminophen can be decreased when combined with Ticlopidine. | Approved |
Ticagrelor | The serum concentration of Ticagrelor can be increased when it is combined with Acetaminophen. | Approved |
Thioridazine | The metabolism of Acetaminophen can be decreased when combined with Thioridazine. | Approved |
Thiopental | The metabolism of Acetaminophen can be increased when combined with Thiopental. | Approved, Vet Approved |
Thiamylal | The metabolism of Acetaminophen can be increased when combined with Thiamylal. | Approved, Vet Approved |
Theophylline | The metabolism of Acetaminophen can be decreased when combined with Theophylline. | Approved |
Testosterone | The serum concentration of Acetaminophen can be increased when it is combined with Testosterone. | Approved, Investigational |
Tesmilifene | The serum concentration of Acetaminophen can be decreased when it is combined with Tesmilifene. | Investigational |
Teriflunomide | The serum concentration of Acetaminophen can be decreased when it is combined with Teriflunomide. | Approved |
Terfenadine | The serum concentration of Acetaminophen can be increased when it is combined with Terfenadine. | Withdrawn |
Terbinafine | The metabolism of Acetaminophen can be decreased when combined with Terbinafine. | Approved, Investigational, Vet Approved |
Terazosin | The serum concentration of Acetaminophen can be increased when it is combined with Terazosin. | Approved |
Tenofovir | The metabolism of Acetaminophen can be decreased when combined with Tenofovir. | Approved, Investigational |
Temsirolimus | The serum concentration of Temsirolimus can be increased when it is combined with Acetaminophen. | Approved |
Telmisartan | The serum concentration of Acetaminophen can be increased when it is combined with Telmisartan. | Approved, Investigational |
Telithromycin | The metabolism of Acetaminophen can be decreased when combined with Telithromycin. | Approved |
Telaprevir | The metabolism of Acetaminophen can be decreased when combined with Telaprevir. | Approved |
Technetium Tc-99m sestamibi | The serum concentration of Technetium Tc-99m sestamibi can be increased when it is combined with Acetaminophen. | Approved |
Taurocholic Acid | The serum concentration of Taurocholic Acid can be increased when it is combined with Acetaminophen. | Experimental |
Tamoxifen | The serum concentration of Acetaminophen can be decreased when it is combined with Tamoxifen. | Approved |
Tacrolimus | The serum concentration of Acetaminophen can be decreased when it is combined with Tacrolimus. | Approved, Investigational |
Tacrine | The serum concentration of Acetaminophen can be increased when it is combined with Tacrine. | Withdrawn |
Sunitinib | The serum concentration of Acetaminophen can be increased when it is combined with Sunitinib. | Approved, Investigational |
Sumatriptan | The serum concentration of Acetaminophen can be increased when it is combined with Sumatriptan. | Approved, Investigational |
Sulfisoxazole | The metabolism of Acetaminophen can be decreased when combined with Sulfisoxazole. | Approved, Vet Approved |
Sulfinpyrazone | The serum concentration of Acetaminophen can be increased when it is combined with Sulfinpyrazone. | Approved |
Sulfamethoxazole | The metabolism of Acetaminophen can be decreased when combined with Sulfamethoxazole. | Approved |
Sulfadiazine | The metabolism of Acetaminophen can be decreased when combined with Sulfadiazine. | Approved, Vet Approved |
Streptozocin | The serum concentration of Acetaminophen can be decreased when it is combined with Streptozocin. | Approved |
Stiripentol | The serum concentration of Acetaminophen can be increased when it is combined with Stiripentol. | Approved |
Staurosporine | The serum concentration of Acetaminophen can be increased when it is combined with Staurosporine. | Experimental |
St. John’s Wort | The serum concentration of Acetaminophen can be decreased when it is combined with St. John's Wort. | Nutraceutical |
Spironolactone | The serum concentration of Acetaminophen can be increased when it is combined with Spironolactone. | Approved |
Sphingosine | The serum concentration of Sphingosine can be increased when it is combined with Acetaminophen. | Experimental |
Sparfloxacin | The serum concentration of Sparfloxacin can be increased when it is combined with Acetaminophen. | Approved |
Sorafenib | Acetaminophen may increase the hepatotoxic activities of Sorafenib. | Approved, Investigational |
Sofosbuvir | The serum concentration of Sofosbuvir can be increased when it is combined with Acetaminophen. | Approved |
Sodium Nitrite | The risk or severity of adverse effects can be increased when Acetaminophen is combined with Sodium Nitrite. | Approved |
Sitagliptin | The serum concentration of Sitagliptin can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Sirolimus | The serum concentration of Acetaminophen can be decreased when it is combined with Sirolimus. | Approved, Investigational |
Simvastatin | The serum concentration of Acetaminophen can be increased when it is combined with Simvastatin. | Approved |
Simeprevir | The serum concentration of Acetaminophen can be increased when it is combined with Simeprevir. | Approved |
Siltuximab | The serum concentration of Acetaminophen can be decreased when it is combined with Siltuximab. | Approved |
Silodosin | The serum concentration of Silodosin can be increased when it is combined with Acetaminophen. | Approved |
Sildenafil | The metabolism of Acetaminophen can be decreased when combined with Sildenafil. | Approved, Investigational |
Sertraline | The serum concentration of Acetaminophen can be increased when it is combined with Sertraline. | Approved |
Selexipag | The serum concentration of Selexipag can be increased when it is combined with Acetaminophen. | Approved |
Selegiline | The serum concentration of Acetaminophen can be increased when it is combined with Selegiline. | Approved, Investigational, Vet Approved |
Secobarbital | The metabolism of Acetaminophen can be increased when combined with Secobarbital. | Approved, Vet Approved |
Scopolamine | The serum concentration of Acetaminophen can be increased when it is combined with Scopolamine. | Approved |
Saxagliptin | The serum concentration of Saxagliptin can be decreased when it is combined with Acetaminophen. | Approved |
Saquinavir | The metabolism of Acetaminophen can be decreased when combined with Saquinavir. | Approved, Investigational |
Salicylic acid | The serum concentration of Salicylic acid can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Rosiglitazone | The metabolism of Acetaminophen can be decreased when combined with Rosiglitazone. | Approved, Investigational |
Ropinirole | The metabolism of Acetaminophen can be decreased when combined with Ropinirole. | Approved, Investigational |
Romidepsin | The serum concentration of Romidepsin can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Rolapitant | The serum concentration of Acetaminophen can be increased when it is combined with Rolapitant. | Approved |
Rivaroxaban | The serum concentration of Rivaroxaban can be increased when it is combined with Acetaminophen. | Approved |
Ritonavir | The metabolism of Acetaminophen can be decreased when combined with Ritonavir. | Approved, Investigational |
Risperidone | The serum concentration of Risperidone can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Rilpivirine | The serum concentration of Acetaminophen can be increased when it is combined with Rilpivirine. | Approved |
Rifaximin | The serum concentration of Rifaximin can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Rifapentine | The metabolism of Acetaminophen can be increased when combined with Rifapentine. | Approved |
Rifampicin | The metabolism of Acetaminophen can be increased when combined with Rifampicin. | Approved |
Rifabutin | The metabolism of Acetaminophen can be increased when combined with Rifabutin. | Approved |
Reserpine | The serum concentration of Acetaminophen can be decreased when it is combined with Reserpine. | Approved |
Regorafenib | The serum concentration of Acetaminophen can be increased when it is combined with Regorafenib. | Approved |
Reboxetine | The serum concentration of Acetaminophen can be increased when it is combined with Reboxetine. | Approved, Investigational |
Ranolazine | The serum concentration of Ranolazine can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Ranitidine | The serum concentration of Acetaminophen can be increased when it is combined with Ranitidine. | Approved |
Rabeprazole | The metabolism of Acetaminophen can be decreased when combined with Rabeprazole. | Approved, Investigational |
Quinine | The serum concentration of Acetaminophen can be increased when it is combined with Quinine. | Approved |
Quinidine | The metabolism of Acetaminophen can be decreased when combined with Quinidine. | Approved |
Quinacrine | The serum concentration of Acetaminophen can be increased when it is combined with Quinacrine. | Approved |
Quetiapine | The serum concentration of Quetiapine can be increased when it is combined with Acetaminophen. | Approved |
Quercetin | The serum concentration of Acetaminophen can be increased when it is combined with Quercetin. | Experimental |
Pyrimethamine | The metabolism of Acetaminophen can be decreased when combined with Pyrimethamine. | Approved, Vet Approved |
Prucalopride | The serum concentration of Prucalopride can be increased when it is combined with Acetaminophen. | Approved |
Protriptyline | The serum concentration of Acetaminophen can be increased when it is combined with Protriptyline. | Approved |
Propranolol | The serum concentration of Propranolol can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Propafenone | The serum concentration of Acetaminophen can be increased when it is combined with Propafenone. | Approved |
Promethazine | The serum concentration of Acetaminophen can be increased when it is combined with Promethazine. | Approved |
Promazine | The metabolism of Acetaminophen can be decreased when combined with Promazine. | Approved, Vet Approved |
Progesterone | The serum concentration of Acetaminophen can be decreased when it is combined with Progesterone. | Approved, Vet Approved |
Probenecid | The serum concentration of Acetaminophen can be increased when it is combined with Probenecid. | Approved |
Primidone | The metabolism of Acetaminophen can be increased when combined with Primidone. | Approved, Vet Approved |
Prilocaine | The risk or severity of adverse effects can be increased when Acetaminophen is combined with Prilocaine. | Approved |
Prednisone | The serum concentration of Prednisone can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Prednisolone | The serum concentration of Prednisolone can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Prazosin | The serum concentration of Acetaminophen can be increased when it is combined with Prazosin. | Approved |
Pravastatin | The serum concentration of Pravastatin can be increased when it is combined with Acetaminophen. | Approved |
Posaconazole | The metabolism of Acetaminophen can be decreased when combined with Posaconazole. | Approved, Investigational, Vet Approved |
Ponatinib | The serum concentration of Ponatinib can be increased when it is combined with Acetaminophen. | Approved |
Pomalidomide | The serum concentration of Pomalidomide can be increased when it is combined with Acetaminophen. | Approved |
Platelet Activating Factor | The serum concentration of Acetaminophen can be decreased when it is combined with Platelet Activating Factor. | Experimental |
Pitavastatin | The serum concentration of Pitavastatin can be increased when it is combined with Acetaminophen. | Approved |
Pioglitazone | The metabolism of Acetaminophen can be decreased when combined with Pioglitazone. | Approved, Investigational |
Pimozide | The serum concentration of Acetaminophen can be increased when it is combined with Pimozide. | Approved |
Phenytoin | The serum concentration of Acetaminophen can be decreased when it is combined with Phenytoin. | Approved, Vet Approved |
Phenylephrine | The serum concentration of Phenylephrine can be increased when it is combined with Acetaminophen. | Approved |
Phenprocoumon | Acetaminophen may increase the anticoagulant activities of Phenprocoumon. | Approved |
Phenobarbital | The metabolism of Acetaminophen can be increased when combined with Phenobarbital. | Approved |
Phenindione | Acetaminophen may increase the anticoagulant activities of Phenindione. | Approved |
Perindopril | The serum concentration of Acetaminophen can be increased when it is combined with Perindopril. | Approved |
Pentobarbital | The metabolism of Acetaminophen can be increased when combined with Pentobarbital. | Approved, Vet Approved |
Peginterferon alfa-2b | The serum concentration of Acetaminophen can be increased when it is combined with Peginterferon alfa-2b. | Approved |
Pazopanib | The serum concentration of Pazopanib can be increased when it is combined with Acetaminophen. | Approved |
Paroxetine | The metabolism of Acetaminophen can be decreased when combined with Paroxetine. | Approved, Investigational |
Pantoprazole | The serum concentration of Acetaminophen can be increased when it is combined with Pantoprazole. | Approved |
Panobinostat | The serum concentration of Acetaminophen can be increased when it is combined with Panobinostat. | Approved, Investigational |
Palmitic Acid | The serum concentration of Acetaminophen can be increased when it is combined with Palmitic Acid. | Experimental |
Palbociclib | The serum concentration of Acetaminophen can be increased when it is combined with Palbociclib. | Approved |
Paclitaxel | The serum concentration of Acetaminophen can be increased when it is combined with Paclitaxel. | Approved, Vet Approved |
P-Nitrophenol | The serum concentration of Acetaminophen can be increased when it is combined with P-Nitrophenol. | Experimental |
Osimertinib | The serum concentration of Acetaminophen can be increased when it is combined with Osimertinib. | Approved |
Omeprazole | The serum concentration of Acetaminophen can be increased when it is combined with Omeprazole. | Approved, Investigational, Vet Approved |
Ombitasvir | The serum concentration of Ombitasvir can be increased when it is combined with Acetaminophen. | Approved |
Olaparib | The metabolism of Acetaminophen can be decreased when combined with Olaparib. | Approved |
Olanzapine | The serum concentration of Olanzapine can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Norethisterone | The serum concentration of Acetaminophen can be decreased when it is combined with Norethisterone. | Approved |
Nizatidine | The serum concentration of Nizatidine can be increased when it is combined with Acetaminophen. | Approved |
Nitric Oxide | The risk or severity of adverse effects can be increased when Nitric Oxide is combined with Acetaminophen. | Approved |
Nitrendipine | The serum concentration of Acetaminophen can be increased when it is combined with Nitrendipine. | Approved |
Nitrazepam | The serum concentration of Acetaminophen can be increased when it is combined with Nitrazepam. | Approved |
Nisoldipine | The serum concentration of Acetaminophen can be increased when it is combined with Nisoldipine. | Approved |
Nintedanib | The serum concentration of Nintedanib can be increased when it is combined with Acetaminophen. | Approved |
Nilotinib | The metabolism of Acetaminophen can be decreased when combined with Nilotinib. | Approved, Investigational |
Nifedipine | The serum concentration of Acetaminophen can be decreased when it is combined with Nifedipine. | Approved |
Nicotine | The metabolism of Acetaminophen can be decreased when combined with Nicotine. | Approved |
Nicardipine | The metabolism of Acetaminophen can be decreased when combined with Nicardipine. | Approved |
Nevirapine | The metabolism of Acetaminophen can be increased when combined with Nevirapine. | Approved |
Netupitant | The serum concentration of Acetaminophen can be increased when it is combined with Netupitant. | Approved |
Neostigmine | The serum concentration of Acetaminophen can be increased when it is combined with Neostigmine. | Approved, Vet Approved |
Nelfinavir | The metabolism of Acetaminophen can be decreased when combined with Nelfinavir. | Approved |
Nefazodone | The metabolism of Acetaminophen can be decreased when combined with Nefazodone. | Approved, Withdrawn |
Naringenin | The serum concentration of Acetaminophen can be increased when it is combined with Naringenin. | Experimental |
Naltrexone | The serum concentration of Acetaminophen can be increased when it is combined with Naltrexone. | Approved, Investigational, Vet Approved |
Naloxone | The serum concentration of Naloxone can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Naloxegol | The serum concentration of Naloxegol can be increased when it is combined with Acetaminophen. | Approved |
Nafcillin | The serum concentration of Acetaminophen can be decreased when it is combined with Nafcillin. | Approved |
Nadolol | The serum concentration of Nadolol can be increased when it is combined with Acetaminophen. | Approved |
Mycophenolate mofetil | The serum concentration of Mycophenolate mofetil can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Morphine | The serum concentration of Morphine can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Modafinil | The serum concentration of Acetaminophen can be decreased when it is combined with Modafinil. | Approved, Investigational |
Mitoxantrone | The serum concentration of Acetaminophen can be decreased when it is combined with Mitoxantrone. | Approved, Investigational |
Mitotane | The serum concentration of Acetaminophen can be decreased when it is combined with Mitotane. | Approved |
Mitomycin | The serum concentration of Acetaminophen can be increased when it is combined with Mitomycin. | Approved |
Mirabegron | The serum concentration of Mirabegron can be increased when it is combined with Acetaminophen. | Approved |
Mipomersen | Acetaminophen may increase the hepatotoxic activities of Mipomersen. | Approved |
Mifepristone | The serum concentration of Acetaminophen can be increased when it is combined with Mifepristone. | Approved, Investigational |
Midazolam | The serum concentration of Acetaminophen can be decreased when it is combined with Midazolam. | Approved, Illicit |
Miconazole | The serum concentration of Acetaminophen can be increased when it is combined with Miconazole. | Approved, Investigational, Vet Approved |
Mibefradil | The serum concentration of Acetaminophen can be increased when it is combined with Mibefradil. | Withdrawn |
Mexiletine | The metabolism of Acetaminophen can be decreased when combined with Mexiletine. | Approved |
Metyrapone | The serum concentration of Acetaminophen can be increased when it is combined with Metyrapone. | Approved |
Metoprolol | The serum concentration of Metoprolol can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Methylprednisolone | The serum concentration of Methylprednisolone can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Methylphenobarbital | The metabolism of Acetaminophen can be increased when combined with Methylphenobarbital. | Approved |
Methotrimeprazine | The metabolism of Acetaminophen can be decreased when combined with Methotrimeprazine. | Approved |
Methotrexate | The serum concentration of Methotrexate can be increased when it is combined with Acetaminophen. | Approved |
Methohexital | The metabolism of Acetaminophen can be increased when combined with Methohexital. | Approved |
Methadone | The serum concentration of Acetaminophen can be increased when it is combined with Methadone. | Approved |
Meprobamate | The serum concentration of Acetaminophen can be increased when it is combined with Meprobamate. | Approved, Illicit |
Megestrol acetate | The serum concentration of Acetaminophen can be increased when it is combined with Megestrol acetate. | Approved, Vet Approved |
Mefloquine | The serum concentration of Acetaminophen can be increased when it is combined with Mefloquine. | Approved |
Mebendazole | The serum concentration of Acetaminophen can be increased when it is combined with Mebendazole. | Approved, Vet Approved |
Maprotiline | The serum concentration of Acetaminophen can be increased when it is combined with Maprotiline. | Approved |
Mannitol | The serum concentration of Mannitol can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Lumefantrine | The metabolism of Acetaminophen can be decreased when combined with Lumefantrine. | Approved |
Lumacaftor | The serum concentration of Acetaminophen can be increased when it is combined with Lumacaftor. | Approved |
Luliconazole | The serum concentration of Acetaminophen can be increased when it is combined with Luliconazole. | Approved |
Lovastatin | The metabolism of Acetaminophen can be decreased when combined with Lovastatin. | Approved, Investigational |
Losartan | The serum concentration of Losartan can be increased when it is combined with Acetaminophen. | Approved |
Lorcaserin | The metabolism of Acetaminophen can be decreased when combined with Lorcaserin. | Approved |
Loratadine | The serum concentration of Acetaminophen can be increased when it is combined with Loratadine. | Approved |
Lopinavir | The metabolism of Acetaminophen can be decreased when combined with Lopinavir. | Approved |
Loperamide | The serum concentration of Loperamide can be increased when it is combined with Acetaminophen. | Approved |
Lomitapide | The serum concentration of Acetaminophen can be increased when it is combined with Lomitapide. | Approved |
Lisinopril | The serum concentration of Acetaminophen can be increased when it is combined with Lisinopril. | Approved, Investigational |
Liotrix | The serum concentration of Acetaminophen can be decreased when it is combined with Liotrix. | Approved |
Liothyronine | The serum concentration of Acetaminophen can be decreased when it is combined with Liothyronine. | Approved, Vet Approved |
Linagliptin | The serum concentration of Linagliptin can be increased when it is combined with Acetaminophen. | Approved |
Lidocaine | The serum concentration of Acetaminophen can be increased when it is combined with Lidocaine. | Approved, Vet Approved |
Levothyroxine | The serum concentration of Acetaminophen can be decreased when it is combined with Levothyroxine. | Approved |
Levomilnacipran | The serum concentration of Levomilnacipran can be increased when it is combined with Acetaminophen. | Approved |
Levofloxacin | The serum concentration of Levofloxacin can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Levetiracetam | The serum concentration of Levetiracetam can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Lenvatinib | The serum concentration of Lenvatinib can be increased when it is combined with Acetaminophen. | Approved |
Lenalidomide | The serum concentration of Lenalidomide can be increased when it is combined with Acetaminophen. | Approved |
Leflunomide | The metabolism of Acetaminophen can be decreased when combined with Leflunomide. | Approved, Investigational |
Ledipasvir | The serum concentration of Ledipasvir can be increased when it is combined with Acetaminophen. | Approved |
Lapatinib | The serum concentration of Acetaminophen can be increased when it is combined with Lapatinib. | Approved, Investigational |
Lansoprazole | The serum concentration of Lansoprazole can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Lamotrigine | The serum concentration of Lamotrigine can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Lamivudine | The serum concentration of Lamivudine can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Ketoconazole | The metabolism of Acetaminophen can be decreased when combined with Ketoconazole. | Approved, Investigational |
Ketazolam | The serum concentration of Ketazolam can be increased when it is combined with Acetaminophen. | Approved |
Ketamine | The serum concentration of Acetaminophen can be increased when it is combined with Ketamine. | Approved, Vet Approved |
Ivermectin | The serum concentration of Ivermectin can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Ivacaftor | The serum concentration of Acetaminophen can be increased when it is combined with Ivacaftor. | Approved |
Itraconazole | The metabolism of Acetaminophen can be decreased when combined with Itraconazole. | Approved, Investigational |
Isradipine | The metabolism of Acetaminophen can be decreased when combined with Isradipine. | Approved |
Isoniazid | The risk or severity of adverse effects can be increased when Isoniazid is combined with Acetaminophen. | Approved |
Isavuconazonium | The metabolism of Acetaminophen can be decreased when combined with Isavuconazonium. | Approved, Investigational |
Irinotecan | The serum concentration of Irinotecan can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Irbesartan | The metabolism of Acetaminophen can be decreased when combined with Irbesartan. | Approved, Investigational |
Indomethacin | The serum concentration of Acetaminophen can be increased when it is combined with Indomethacin. | Approved, Investigational |
Indinavir | The metabolism of Acetaminophen can be decreased when combined with Indinavir. | Approved |
Indacaterol | The serum concentration of Indacaterol can be increased when it is combined with Acetaminophen. | Approved |
Imipramine | The serum concentration of Imipramine can be increased when it is combined with Acetaminophen. | Approved |
Imatinib | Acetaminophen may increase the hepatotoxic activities of Imatinib. | Approved |
Idelalisib | The serum concentration of Acetaminophen can be increased when it is combined with Idelalisib. | Approved |
Ibuprofen | The serum concentration of Ibuprofen can be increased when it is combined with Acetaminophen. | Approved |
Hydrocortisone | The serum concentration of Hydrocortisone can be increased when it is combined with Acetaminophen. | Approved, Vet Approved |
Hexobarbital | The metabolism of Acetaminophen can be increased when combined with Hexobarbital. | Approved |
Haloperidol | The serum concentration of Haloperidol can be increased when it is combined with Acetaminophen. | Approved |
Grepafloxacin | The serum concentration of Grepafloxacin can be increased when it is combined with Acetaminophen. | Withdrawn |
Grazoprevir | The serum concentration of Grazoprevir can be increased when it is combined with Acetaminophen. | Approved |
Gramicidin D | The serum concentration of Acetaminophen can be increased when it is combined with Gramicidin D. | Approved |
Glycerol | The serum concentration of Acetaminophen can be increased when it is combined with Glycerol. | Experimental |
Glyburide | The serum concentration of Acetaminophen can be increased when it is combined with Glyburide. | Approved |
Genistein | The serum concentration of Acetaminophen can be increased when it is combined with Genistein. | Investigational |
Gemfibrozil | The metabolism of Acetaminophen can be decreased when combined with Gemfibrozil. | Approved |
Gemcitabine | The serum concentration of Gemcitabine can be increased when it is combined with Acetaminophen. | Approved |
Gefitinib | The serum concentration of Gefitinib can be increased when it is combined with Acetaminophen. | Approved, Investigational |
Fusidic Acid | The serum concentration of Acetaminophen can be increased when it is combined with Fusidic Acid. | Approved |
Fosphenytoin | The serum concentration of Acetaminophen can be decreased when it is combined with Fosphenytoin. | Approved |
Fosaprepitant | The serum concentration of Acetaminophen can be increased when it is combined with Fosaprepitant. | Approved |
Fosamprenavir | The metabolism of Acetaminophen can be decreased when combined with Fosamprenavir. | Approved |
Fluvoxamine | The metabolism of Acetaminophen can be decreased when combined with Fluvoxamine. | Approved, Investigational |
Fluvastatin | The metabolism of Acetaminophen can be decreased when combined with Fluvastatin. | Approved |
Fluticasone furoate | The serum concentration of Fluticasone furoate can be increased when it is combined with Acetaminophen. | Approved |
Flurazepam | The serum concentration of Acetaminophen can be increased when it is combined with Flurazepam. | Approved, Illicit |
Fluphenazine | The serum concentration of Acetaminophen can be increased when it is combined with Fluphenazine. | Approved |
Flupentixol | The serum concentration of Acetaminophen can be increased when it is combined with Flupentixol. | Approved, Withdrawn |
Fluoxetine | The metabolism of Acetaminophen can be decreased when combined with Fluoxetine. | Approved, Vet Approved |
Fluorouracil | The metabolism of Acetaminophen can be decreased when combined with Fluorouracil. | Approved |
Fluindione | Acetaminophen may increase the anticoagulant activities of Fluindione. | Investigational |
Fluconazole | The metabolism of Acetaminophen can be decreased when combined with Fluconazole. | Approved |
Floxuridine | The metabolism of Acetaminophen can be decreased when combined with Floxuridine. | Approved |
Fidaxomicin | The serum concentration of Fidaxomicin can be increased when it is combined with Acetaminophen. | Approved |
Fexofenadine | The serum concentration of Fexofenadine can be increased when it is combined with Acetaminophen. | Approved |
Fesoterodine | The serum concentration of Fesoterodine can be increased when it is combined with Acetaminophen. | Approved |
Fentanyl | The serum concentration of Acetaminophen can be increased when it is combined with Fentanyl. | Approved, Illicit, Investigational, Vet Approved |
Felodipine | The serum concentration of Acetaminophen can be increased when it is combined with Felodipine. | Approved, Investigational |
Ziprasidone The metabolism of Acetaminophen can be decreased when combined with Ziprasidone. Approved Zimelidine The serum concentration of Acetaminophen can be increased when it is…
Reserpine The serum concentration of Acetaminophen can be decreased when it is combined with Reserpine. Approved Regorafenib The serum concentration of Acetaminophen can be increased…
Mitotane The serum concentration of Acetaminophen can be decreased when it is combined with Mitotane. Approved Mitomycin The serum concentration of Acetaminophen can be increased…