Bouts of vomiting, nausea and abdominal pain: The little-known syndrome stalking daily cannabis users
During a shift in the emergency department at the Ramón y Cajal Hospital in Madrid, Beatriz Mexía treated a 19-year-old man with severe nausea, vomiting, and abdominal pain. “He could not tolerate even a sip of water and was dehydrated. We gave him intravenous fluids, but the usual anti-emetics could not stop the vomiting,” she recalls. This fourth-year family medicine resident, who works at the Los Alpes Health Center in Madrid, that night witnessed a chronic, common — but little-known in Spain, even among health staff — clinical scenario caused by daily cannabis or marijuana use: cannabinoid hyperemesis syndrome (CHS), characterized by severe, cyclical episodes of vomiting and nausea.


