Mixing Diphenhydramine (Benadryl) and Mescaline (peyote)
Caution
Beyond an ordinary 25–50 mg dose of diphenhydramine, mescaline makes its delirium worse and injury more likely. Keep diphenhydramine to that dose.
At 25-50mg, DPH may assist with side effects of the mescaline such as nausea and anxiety. At higher dosages, the combination of a deliriant (DPH) and mescaline is cautioned against. Mescaline is likely to increase the deliriant and negative effects of DPH, in addition to increasing the risk of severe injury and mental trauma.
The risk here is to the experience — intensity, panic, thought loops, confusion. Physical harm is unlikely at ordinary doses. Setting, company and dose do most of the work.
Headspace vs physical riskCan you mix Diphenhydramine (Benadryl) and Mescaline (peyote)?
MixSafe rates mixing Diphenhydramine and Mescaline as "Caution" — carries risk that is worth understanding before combining. Reduce doses and do not use alone. Source: TripSit drug combination chart, retrieved 2026-08-20. Educational information, not medical advice.
- Diphenhydramine also called
- benadryl, dph, sleep aid, zzzquil, unisom, doxylamine
- Mescaline also called
- peyote, san pedro, san-pedro, mesc, buttons
TripSit drug combination chart, retrieved 2026-08-20. View the dataset.
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Rated caution. Educational information only, not medical advice. Absence of a documented interaction is not evidence of safety.