News tagged with drug

Related topics: food and drug administration , patients , cancer , protein , cells

Experimental drug helps body fight advanced melanoma

(HealthDay)—An experimental drug that harnesses the power of the body's immune system to fight cancer has helped some patients with advanced melanoma keep their disease in check for several years, a new ...

Mar 03, 2014
popularity 4.6 / 5 (5) | comments 0

New control target for cancer metabolism: Acetylation

(Medical Xpress)—Cancer cells are not interested in sustainability. They gobble up sugar inefficiently, brushing aside their mitochondria, the efficient miniature power plants that supply energy to healthy ...

Feb 06, 2014
popularity 5 / 5 (4) | comments 0 | with audio podcast

Drug

A drug, broadly speaking, is any substance that, when absorbed into the body of a living organism, alters normal bodily function. There is no single, precise definition, as there are different meanings in drug control law, government regulations, medicine, and colloquial usage.

In pharmacology, Dictionary.com defines a drug as "a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being." Drugs may be prescribed for a limited duration, or on a regular basis for chronic disorders.

Recreational drugs are chemical substances that affect the central nervous system, such as opioids or hallucinogens. They may be used for perceived beneficial effects on perception, consciousness, personality, and behavior. Some drugs can cause addiction and habituation.

Drugs are usually distinguished from endogenous biochemicals by being introduced from outside the organism.[citation needed] For example, insulin is a hormone that is synthesized in the body; it is called a hormone when it is synthesized by the pancreas inside the body, but if it is introduced into the body from outside, it is called a drug.[citation needed]

Many natural substances such as beers, wines, and some mushrooms, blur the line between food and drugs, as when ingested they affect the functioning of both mind and body.

This text uses material from Wikipedia licensed under CC BY-SA