Cannabinoid hyperemesis syndrome is a relatively newly recognised condition - but, according to one study, can account for up to 6% of patients presenting to emergency departments.

The causal mechanism is as yet unclear - but currently the only known way to prevent the syndrome is for the patient to stop their cannabis use.

Yaniv Chocron, chief resident at Lausanne University Hospital, Lausanne, Switzerland talks us through spotting the condition, and what we think might be the mechanism of action.

Read the full easily missed article:

https://www.bmj.com/content/366/bmj.l4336