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A capsule or tablet of the illicit drug methaqualone.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


An addictive Schedule-II hypnotic-sedative quinazolone with barbiturate-like effects which, when it was legal, was used to reduce anxiety and tension. It was a popular drug of abuse, and it was linked to physical or psychologic dependence.

Clinical findings
Delirium, headache, nausea, pyramidal signs, convulsions, renal and cardiac failure; rarely, aplastic anaemia.
Oral, injected, sniffed, smoked.
Management of overdose

Toxic range
> 8 µg/mL, serum; > 300 µg/L, urine.
20–60 hours.
Serum, random urine.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Methaqualone, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Female gang members reported also using cocaine, crack, LSD, PCP, methamphetamine, heroin, glue/inhalants, MDMA, and quaaludes. Although polydrug use was relatively common, the extent to which other drugs were used varied by ethnicity.
dust to give you a picture of this ease, in that same trial a drug trial--one of the defendants wore a "Captain Quaalude" t-shirt in court every day.
The only other drugs showing continued declines this year are LSD and methequalone, also known as Quaalude. Both drugs are used by a small minority of students.
19 (ANI): When it comes to one of the most memorable moments in 'Wolf of Wall Street' it has to be the amazingly choreographed quaalude scene.
He gave her champagne and part of a Quaalude pill and, according to testimony from Geimer soon afterward, forced her to have sex with him.
BILL Cosby testified in 2005 that he bought Quaalude sedatives to give to women with the intent of having sex with them.
A single Quaalude pill in the pocket of a 19-year-old, long-haired kid in 1979.
Polanski was accused of plying a 13-year-old girl with champagne and part of a Quaalude during a modeling shoot in 1977 and raping her.