Psilocybin for Addiction and Substance Use Disorders
Johns Hopkins trials show psilocybin produces 80% smoking cessation rates at 6 months — more than double the best pharmaceutical options. Here's what the research shows for addiction.
The Short Answer
Psilocybin has produced the most impressive addiction treatment results of any substance in modern clinical research. A Johns Hopkins pilot study found 80% smoking abstinence at 6-month follow-up — compared to 35% for varenicline (Chantix), the best available pharmaceutical. Psilocybin also shows significant results for alcohol use disorder and is being studied for opioid addiction. The mechanism appears to be a combination of neuroplasticity, default mode network disruption, and profound shifts in self-perception and values.
The Smoking Cessation Data
The Matthew Johnson-led Johns Hopkins study (2014, published in Psychopharmacology) enrolled 15 smokers who had failed multiple previous quit attempts. After 2–3 psilocybin sessions with cognitive behavioral therapy:
For comparison, varenicline (Chantix) achieves approximately 35% abstinence at 6 months.
Alcohol Use Disorder
A 2022 RCT published in JAMA Psychiatry found that psilocybin-assisted therapy significantly reduced heavy drinking days compared to placebo. Participants in the psilocybin group reduced heavy drinking by 83% from baseline, compared to 51% in the placebo group.
Why Psilocybin Works for Addiction
Addiction involves rigid neural patterns — the same default mode network hyperactivity seen in depression and OCD. Psilocybin disrupts these patterns, creating a window of neuroplasticity during which new behavioral patterns can be established. Many participants describe a shift in their relationship with the substance — it simply loses its appeal.
This article is for informational purposes only and does not constitute medical advice.
This article is for informational purposes only and does not constitute medical advice. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before making any changes to your health regimen.