Aripiprazole-induced acneiform eruption.

Drug-induced acneiform eruptions are inflammatory follicular reactions that resemble acne vulgaris both in morphology and distribution, which manifest clinically as papulopustules and occasionally as comedones. We report a case of a patient who developed acneiform eruptions while being treated with aripiprazole which resolved after discontinuation of aripiprazole and application of topical retinoic acid. The acneiform eruption could be explained on the basis of Type III allergic mechanism in an already sensitized individual.