All 6 Types of THC Explained: Effects, Potency & Legal Status Compared
A 1972 study gave up to 90 mg/kg of THC to dogs and monkeys without any lethal effects. Chronic usage of THC may result in cannabinoid hyperemesis syndrome (CHS), a condition characterized by cyclic nausea, vomiting, and abdominal pain that may persist for months to years after discontinuation.