Haloperidol For Outpatient Symptom Management in Patients Diagnosed With Cannabinoid Hyperemesis Syndrome in the Emergrency Department

Cannabinoid hyperemesis syndrome is a relatively new syndrome characterized by nausea, vomiting, and abdominal pain in the setting of excessive cannabis use. This clinical entity has become increasingly prevalent as the concentration of THC has increased in marijuana products over the past several decades. The symptoms have been treated successfully with several medications however the most efficacious appears to be dopamine antagonists such as haloperidol and droperidol. These dopamine antagonists have been used safely and successfully in the inpatient and emergency department settings to decrease the frequency and intensity of nausea, vomiting, and abdominal pain in patients suffering from cannabinoid hyperemesis syndrome. We plan to evaluate haloperidol, a dopamine antagonist available as an oral formulation, as an option for outpatient management of these symptoms.

Inclusion criteria

• Patients who meet ROME-4 diagnostic criteria for cannabinoid hyperemesis syndrome

Exclusion criteria

Already on dopamine agonist/antagonist therapy for another condition Parkinson's disease Lewy body dementia Men with QTc > 450 Women with QTc > 460 Patients with documented allergy to haloperidol Patients with known functional prolactinomas Patients who are breastfeeding Patients under the age of 18 Patients who are pregnant Patients who are in the prison system Patients who are unable to consent