News tagged with drug

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

Opinion: Will legal marijuana lead to more addicts?

At present, cannabis is fully legalized in Colorado and Washington and will soon be fully legalized in Oregon and Alaska. Additionally, medical cannabis is legal in 23 states. The writing is on the wall that more and more states are going to legal ...

Jan 14, 2015
popularity 3.7 / 5 (23) | comments 0

Scientists find how cancers can evade treatment

The drugs were designed to keep cancer cells at bay by preventing their growth, survival and spread. Yet, after clinical trials, they left scientists scratching their heads and drug developers watching their ...

Jan 15, 2015
popularity 4.6 / 5 (13) | comments 1

The future of precision immunology

In his State of the Union address, President Obama announced a new precision medicine initiative to work on finding a cure for cancer and other diseases. Howard L. Kaufman, a leading immunotherapy expert ...

Jan 30, 2015
popularity 5 / 5 (7) | 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