New Study Suggests Cannabis May Reduce Short-Term Alcohol Consumption
A recent clinical trial published in the American Journal of Psychiatry has shed new light on the relationship between cannabis and alcohol use. The study found that participants who smoked cannabis containing THC consumed significantly less alcohol in the short term compared to those who received a placebo. The reduction in alcohol consumption ranged from 19% to 27%, depending on the dose of THC.
The trial involved 157 participants who reported heavy drinking and regular cannabis use. Over several sessions, participants were given cannabis with either 3.1% THC, 7.2% THC, or a near-zero THC placebo. After consuming the cannabis, participants were exposed to alcohol cues and monitored while they drank.
Contrary to concerns that cannabis might increase alcohol cravings, the study found no significant change in overall craving scores. However, higher doses of THC did reduce the immediate urge to drink after use. The most notable finding was behavioral: participants who received 7.2% THC delayed their first drink and consumed less overall compared to the placebo group.
The study’s results support the “substitution effect,” where cannabis may reduce alcohol intake under controlled conditions. However, the researchers cautioned that participants still drank alcohol after using cannabis, and the study does not support using cannabis as a treatment for alcohol use disorder.
The trial focused on frequent cannabis users, many of whom met criteria for cannabis use disorder. The researchers noted that the results may differ for occasional users or those with more severe alcohol dependence.
As cannabis legalization expands and more consumers explore alternatives to alcohol, the study’s findings are timely. The results suggest that cannabis may reduce short-term alcohol consumption, but more research is needed to understand the long-term effects and health outcomes.
