News tagged with drug

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

FDA study finds little evidence of antibiotics in milk

In an encouraging development for consumers worried about antibiotics in their milk, a new Food and Drug Administration study showed little evidence of drug contamination after surveying almost 2,000 dairy ...

1 hour ago
popularity not rated yet | comments 0

Watching the death throes of tumours

A clinical trial due to begin later this year will see scientists observing close up, in real time – and in patients – how tumours respond to new drugs.

Feb 26, 2015
popularity 4.4 / 5 (5) | comments 0

Opdivo approval expanded to include lung cancer

(HealthDay)—U.S. Food and Drug Administration approval of Opdivo (nivolumab) has been expanded to include advanced non-small cell lung cancer (NSCLC), the agency said Wednesday in a news release.

22 hours ago
popularity not rated yet | comments 0

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