Cannabinoid Hyper-emesis Syndrome: An Enigma.

Marijuana is one of the most frequently abused illicit substances in the world especially Australia. Cannabinoid Hyperemesis Syndrome (CHS) is characterized by a triad of symptoms: Cyclic vomiting, chronic marijuana use, and compulsive bathing. It involves recurrent episodes of self-limited nausea and vomiting lasting several days and patients are asymptomatic between episodes. We believe that Cannabinoid Hyper emesis Syndrome is much more common than currently recognized. We present a unique case with an apparent positive family history of the same clinical entity.