a French pharmacovigilance program for drug users had received reports of 29 cases of<unk> . At the time there were 113 case described in the international medical literature.<unk>  incidence is likely to have been substantially under-reported. In the United States, an analysis of data from the National Emergency Department Sample between 2006 and 2013 found an increase in emergency room attendees with vomiting who also had cannabis use disorder, to a rate of approximately 13 per 100,000 attendees. It is possible this rise, of around 5 times, may be affected by sampling bias, as initial awareness of<unk>  prompted more diligent questioning and recording of when such ER attendees were also cannabis users. The number of people affected was unclear as of 2015.<unk>  has been reported more frequently in people that use cannabis daily (47.9% of people with<unk>  and greater than daily (23.7% of people with<unk> , compared to once weekly users (19.4% of people with<unk>  and less frequent users (2.4% of people with<unk> . A significant increase in the incidence of<unk>  (and other cannabis-related visits to the emergency department) has been noted in U.S. states that have legalized cannabis, with the incidence of cyclic vomiting prominently doubling in the US state of Colorado after legalization. As the use of cannabis continues to be legalized at the state level, the prevalence of<unk>  is expected to increase in the US.
Cannabinoid hyperemesis syndrome
Serotonin syndrome
Caffeinism
Nicotine poisoning
Alcohol flush reaction
Theobromine poisoning
Clinical endocannabinoid deficiency syndrome
Nicotine withdrawal