At a Glance
| 3-MeO-PCP | Diphenhydramine | |
|---|---|---|
| Class | Dissociatives | Deliriant |
| Common Dose (oral) | 8–15 mg | 200–400 mg |
| Total Duration | 3.3–6.5 hrs | 2.3–7 hrs |
| Routes | insufflatedoralsmoked |
3-MeO-PCP, a Dissociatives, and Diphenhydramine, a Deliriant, are frequently compared by users looking to understand their relative effects, dosage profiles, and safety considerations. 3-MeO-PCP is classified as a Dissociatives while Diphenhydramine is a Deliriant, meaning they approach altered states through different pharmacological mechanisms. They share 30 documented effects in common, with 19 effects unique to 3-MeO-PCP and 22 unique to Diphenhydramine. This side-by-side comparison covers dosage, duration, subjective effects, and safety to help you make informed decisions.
| 3-MeO-PCP | Diphenhydramine | |
|---|---|---|
| Class | Dissociatives | Deliriant |
| Common Dose (oral) | 8–15 mg | 200–400 mg |
| Total Duration | 3.3–6.5 hrs | 2.3–7 hrs |
| Routes | insufflatedoralsmoked |
oral |
| Effects | 49 documented | 52 documented |
| Interaction | Caution | |
| Level | 3-MeO-PCP | Diphenhydramine |
|---|---|---|
| Threshold | 2 mg | 25 mg |
| Light | 4–8 mg | 100–200 mg |
| Common | 8–15 mg | 200–400 mg |
| Strong | 15–25 mg | 400–700 mg |
| Heavy | 25 mg | 700 mg |
| Level | Dose |
|---|---|
| Threshold | 1 mg |
| Light | 2–5 mg |
| Common | 5–10 mg |
| Strong | 10–15 mg |
| Level | Dose |
|---|---|
| Threshold | 2 mg |
| Light | 5–10 mg |
| Common | 10–20 mg |
| Strong | 20–25 mg |
| Heavy | 25 mg |
3-MeO-PCP
Total: 4 hrs – 8 hrs
Diphenhydramine
Total: 3 hrs – 10 hrs
Total: 3 hrs – 5 hrs
Unpredictable compounding of hallucinogenic effects with anticholinergic delirium