Cannabis and psychedelics are often combined — typically during the “comeup” or “comedown”. The pharmacological interaction isn’t fully understood, but subjective and clinical experiences are clear:
- Amplification of the psychedelic effect — hallucinations become more intense, sometimes overwhelming
- Increased tendency toward anxiety and panic — especially in people with predispositions
- Delusional content more common than without cannabis
- Re-triggering of old cannabis side effects (paranoia)
Acute physical danger is low. Psychological crises — anxiety, paranoia, bad trip — are more common than with psychedelics alone.
Practical notes:
- If you have little experience with both substances: use them separately, get to know the tolerance and effects first
- Keep the THC dose low, especially if cannabis is added late in the trip
- If you have a history of cannabis paranoia: take psychedelics without cannabis
- Set & setting matter more than with psychedelics alone
In a psychological crisis, see “Panic Crisis” and “Psychotic Episode”. Trip-sitting principles: validate, don’t contradict, calm environment, remind them of the substance.