After a single 10 mg oral dose of THC, women reported a heightened subjective feeling of being 'high' compared to men, while psychotomimetic and physiological effects were similar across sexes. No sex differences appeared in verbal learning and memory. The findings suggest that women may experience a more pronounced subjective psychoactive response to THC, pointing to individual vulnerabilities that could inform tailored interventions for cannabis use disorder.
Chronic pain and opioid use disorder (OUD) are two interconnected public health crises that lack effective treatments. This review examines whether psychedelics could serve as novel therapeutics by acting on shared brain mechanisms underlying both conditions. Preclinical and human evidence suggests psychedelics may reverse pain- and opioid-induced neuroadaptations like central sensitization. The authors map how psychedelics could modulate overlapping dimensions of pain (sensory, affective, cognitive) and opioid-related phenomena (craving, withdrawal). They note a scarcity of controlled studies but propose mechanistic insights and methodological guidelines for future clinical trials. The goal is to accelerate development of alternatives to opioids amid the escalating crisis.
Greater childhood trauma is linked to lower aversive effects from higher doses of THC in people being treated with methadone for opioid use disorder. In a placebo-controlled crossover trial with 25 participants, those with more childhood trauma reported fewer negative subjective effects after taking 20 mg of oral THC. This reduced sensitivity to THC's aversive effects may contribute to increased cannabis use among individuals with opioid use disorder. The findings highlight the importance of assessing childhood trauma in opioid use disorder treatment and research.