The relative potential harms of inhaled and edible cannabis products have been poorly characterized and are still under investigation. Edible cannabis is generally considered to be more toxic than inhaled cannabis, on the basis of poison center data and anecdotal reports. A study of adult ED visits in Colorado related to edible and inhaled cannabis exposure found that visits attributable to inhaled cannabis were more likely to be for cannabinoid hyperemesis syndrome. That study also found that acute psychiatric events and cardiovascular symptoms are more commonly associated with edible cannabis use, although inhaled cannabis results in a higher frequency of cannabis-attributable ED visits. The only deaths in Colorado that have been definitively attributed to cannabis have involved edible cannabis.
Read more about the presentation of cannabis poisoning.
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Cite this: Richard H. Sinert. Fast Five Quiz: Cannabis Use and Abuse - Medscape - Apr 08, 2020.