abstract:In pharmacology, a psycholeptic is a medication which produces a calming effect upon the patient. Such medications include barbiturates, benzodiazepines, nonbenzodiazepines, phenothiazines, opiates/opioids, carbamates, ethanol, 2-methyl-2-butanol, cannabinoids (in some classifications), some antidepressants, neuroleptics, and some anticonvulsants.