News tagged with drug

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

Addiction specialist explains fentanyl threat

As the opioid crisis rages across the United States, people suffering from addiction as well as the first responders, doctors, and counselors trying to help them are facing another deadly challenge: fentanyl, a synthetic ...

Jun 28, 2017
popularity51 comments 1

New bladder cancer therapy to start clinical trials

An experimental treatment for bladder cancer will move into an early phase clinical trial under an agreement signed today (Monday) between Cancer Research UK and Cancer Research Technology (CRT), the charity's commercial ...

Jun 27, 2017
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How to pick a winner in clinical drug trials

When a drug fails late on in clinical trials it's a major setback for launching new medicines. It can cost millions, even billions, of research and development funds. Now, an 'adaptive' approach to clinical trials and a genetic ...

Jun 27, 2017
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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

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