Memantine
Typical Dose 20-40 mg
Duration 12h - 72h
Interaction Risk Unknown
Detection Methods 2
Description
An NMDA-antagonist that if used recreationally can cause to a very prolonged "hole" lasting up to 16+ hours.
Effects & Dosing
Dosage
Oral
| Light | Common | Strong | Heavy |
|---|---|---|---|
| 10-20 mg | 20-40 mg | - | 40-80 mg+ |
Duration
Oral
Onset 30 min - 1h 30m
Total Duration 12h - 72h
After Effects 1h - 72h
Safety & Risks
Detection Times
| Method | Detection Window |
|---|---|
| Blood | 2–5 days |
| Urine | 3–7 days |
Note: NMDA receptor antagonist used for Alzheimer's disease. Not part of standard drug panels. Has been reported to cause false positives for PCP on some immunoassays.
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