Dictionary

Drug Enforcement Administration See DEA.

drug activity A measure of the physiological response that a drug produces. A less active drug produces less response, and a more active drug produces more response.

drug, teratogenic See teratogen.

drug, prescription See prescription drug.

drug, over-the-counter A drug for which a prescription is not needed.

drug, antiviral See antiviral agent.

drug, anti-infective See agent, anti-infective.

drug, antihypertensive See antihypertensive.

drug, anti-angiogenesis See anti-angiogenesis drug.

drug, ACE-inhibitor See ACE inhibitor.

drip Short for intravenous drip, a device for administering a fluid drop-by-drop into a vein via an intravenous (IV) route.

dream A series of thoughts, visions, and other sensations that occupy the mind during sleep. Dreams occur during that part of sleep when there are rapid eye movements (REM sleep). People have three to five periods of REM sleep per night, which usually come at intervals of 1 to 2 hours and are quite variable…