Medications

Expert: Opioid settlements come with limitations

The nation's three biggest drug distributors and a major drugmaker agreed to a $260 million settlement Monday over the toll taken by opioids in two Ohio counties, averting the first federal trial over the crisis.

Medical research

Unexpected role of mTORC2 protein in colorectal cancer

New results from researchers at MedUni Vienna's Center for Pathobiochemistry and Genetics show that a protein called mTORC2, which is the target of newly developed cancer drugs, is not even active in colorectal cancer. mTORC2 ...

Medical research

Polymerized estrogen shown to protect nervous system cells

Spinal cord damage that causes paralysis and reduced mobility doesn't always stop with the initial trauma, but there are few treatment options to halt increased deterioration—and there is no cure. Researchers at Rensselaer ...

Genetics

Machine learning's next frontier: Epigenetic drug discovery

Machine learning's powerful ability to detect patterns in complex data is revolutionizing how we drive, how we diagnose disease and now, how we discover new drugs. Scientists at Sanford Burnham Prebys Medical Discovery Institute ...

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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