News tagged with drug

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

Health insurers using drug coverage to discriminate

Some insurers offering health plans through the new federal marketplace may be using drug coverage decisions to discourage people with HIV from selecting their plans, according to a new study from Harvard ...

Jan 28, 2015
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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 ...

2 hours ago
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Many seniors not reporting falls to physician

(HealthDay)—Millions of Americans aged 65 and older fall every year, according to the U.S. Centers for Disease Control and Prevention. But, fewer than half tell their doctor, according to a news release ...

Jan 28, 2015
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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