Sammanfattning
A 19-year old female was admitted with intractable nausea, vomiting and intermittent abdominal pain. The medical history of
the patient contained nine previous, similar admissions and extensive investigations within several medical specialties at
several hospitals in the vicinity of Copenhagen, as well as abroad during the patient’s holidays. All of the investigations were
without findings that could explain the recurring condition. The patient reported chronic morning sickness, exacerbating with
vomiting and abdominal pain every month since the age of 13. Especially during these exacerbations, the patient took frequent
hot baths for symptom relief. Cannabinoid hyperemesis syndrome (CHS) was suspected and the patient admitted having used
cannabis daily for the past seven years. She received parenteral rehydration and counseling regarding cannabis cessation. Two
months after discharge the patient was no longer using cannabis and was symptom-free. This case report intends to raise
clinicians’ awareness of CHS in Sweden, a country where 55 000 of the inhabitants aged 16 years and older report having used
cannabis during the past 30 day period.