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1. Therapeutic agent; any substance, other than food, used in the prevention, diagnosis, alleviation, treatment, or cure of disease. For types or classifications of d.'s, see the specific name. See also agent. 2. To administer or take a d., usually implying an overly large quantity or a narcotic. 3. General term for any substance, stimulating or depressing, that can be habituating or addictive, especially a narcotic. [M.E. drogge]
addictive d. any d. that creates a certain degree of euphoria and has a strong potential for addiction.
crude d. an unrefined preparation, usually of plant origin, that occurs either in the entire, nearly entire, broken, cut, or powdered state.
d. holidays intervals when a chronically medicated patient temporarily stops taking the medication; used to allow some recuperation of normal functions and/or to maintain sensitivity to the drug(s).
nonsteroidal anti-inflammatory d.'s (NSAID) a large number of d.'s exerting anti-inflammatory (and also usually analgesic and antipyretic) actions; examples include aspirin, acetaminophen, diclofenac, ibuprofen, and naproxen. A contrast is made with steroidal compounds (such as hydrocortisone or prednisone) exerting anti-inflammatory activity.
orphan d.'s orphan products, under product
psychedelic d. hallucinogen
psychodysleptic d. hallucinogen
psycholytic d. hallucinogen
psychotomimetic d. hallucinogen
psychotropic d. any d. that affects the mind.
recreational d. street d
scheduled d. a d. assigned to any of the five schedules in the Controlled Substances Act (1970). See also controlled substance.
street d. a controlled substance taken for non-medical purposes. Street d.'s comprise various amphetamines, anesthetics, barbiturates, opiates, and psychoactive drugs, and many are derived from natural sources (e.g., the plants Papaver somniferum, Cannibis sativa, Amanita pantherina, Lophophora williamsii). Slang names include acid (lysergic acid diethylamide), angel dust (phencyclidine), coke (cocaine), downers (barbiturates), grass (marijuana), hash (concentrated tetrahydrocannibinol), magic mushrooms (psilocybin), mescaline (peyote), speed (amphetamines). During the 1980s, a new class of "designer drugs" arose, mostly analogs of psychoactive substances intended to escape regulation under the Controlled Substances Act. Also, crack cocaine, a potent, smokable form of cocaine, emerged as a major public health problem. In the U.S. illicit use of drugs such as cocaine, marijuana, and heroin historically has occurred in cycles.recreational d;
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