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Anabolic Steroids

Anabolic steroids are man-made substances related to male sex hormones. Doctors use anabolic steroids to treat some hormone problems in men, delayed puberty, and muscle…

Analgesic

An analgesic or painkiller is any member of the group of drugs used to achieve analgesia, relief from pain.  Analgesic drugs act in various ways…

Anesthesia

If you are having surgery, your doctor will give you medicine called an anesthetic. Anesthetics reduce or prevent pain. There are three main types: Local…

Anesthetic

An anesthetic (anaesthetic or anæsthetic in British English) is a drug that causes anesthesia, which is a reversible loss of sensation. Anesthetics contrast with analgesics…

Angina

Angina is chest pain or discomfort you feel when there is not enough blood flow to your heart muscle. Your heart muscle needs the oxygen…

Ankle Injuries and Disorders

Your ankle bone and the ends of your two lower leg bones make up the ankle joint. Your ligaments, which connect bones to one another,…

Ankylosing Spondylitis

Ankylosing spondylitis is a type of arthritis of the spine. It causes inflammation between your vertebrae, which are the bones that make up your spine,…

How Antidepressants Block Serotonin Transport

Antidepressants

Antidepressants are medicines that treat depression. Your doctor can prescribe them for you. They work to balance some of the natural chemicals in our brains.…

Antioxidants

Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage. Antioxidants are found in many foods, including fruits and…

Anxiety

Fear and anxiety are part of life. You may feel anxious before you take a test or walk down a dark street. This kind of…