Research topic:drugs

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Find more facts and information on our topic page about drugs

drug

World Encyclopedia | 2005 | © World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

drug In medicine, any substance used to diagnose, prevent or treat disease or aid recovery from injury. Although many drugs are still obtained from natural sources, scientists are continually developing synthetic drugs which work on target cells or microorganisms. Such drugs include antibiotics. Some drugs interfere in physiological processes, such as anti-coagulants which render the blood less prone to clotting. Drugs also may be given to make good some deficiency, such as hormone preparations which compensate for an underactive gland.

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