Table 5 Definition (Rome IV Criteria) of cannabinoid hyperemesis syndrome^a

Starts after excessive and lengthy usage of cannabis for at least 6 months prior to diagnosis^b

- Must have recurrent vomiting (similar onset, duration and frequency) that appears like cyclic vomiting syndrome for at least 3 months

- Resolution of vomiting after cannabis use stopped

- All criteria must be met for the last 3 months