Combination

Mixing Diphenhydramine and DMT

DeliriantPsychedelic
Diphenhydramine also called
benadryl, dph, sleep aid, zzzquil, unisom
DMT also called
n,n-dmt, dimethyltryptamine, changa
Verdict

Caution

At 25-50mg, DPH may assist with side effects of the DMT such as nausea and anxiety. At higher dosages, the combination of a deliriant (DPH) and DMT is cautioned against. DMT is likely to increase the deliriant and negative effects of DPH, in addition to increasing the risk of severe injury and mental trauma.

Risk / Headspace

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.

Can you mix Diphenhydramine and DMT?

Carries risk that is worth understanding before combining. Reduce doses and do not use alone.

Source

TripSit drug combination chart, retrieved 2026-08-20. View the dataset.

Checking more than two?

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Rated caution. Educational information only, not medical advice. Absence of a documented interaction is not evidence of safety.