Pharmacology of lorazepam.

Lorazepam reduced conflict behavior in rats and monkeys, inhibited pentylenetetrazol- and electroshock-induced convulsions, suppressed footshock-induced fighting behavior, and prevented morphine-induced stimulation in mice at lower doses than other benzodiazepines tested. This behavioral profile suggests that lorazepam will be an active anti-anxiety agent in man at low doses.