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Chemical Nomenclature
Common names Phenergan, Lergigan
Substitutive name Promethazine
Systematic name N,N,α-trimethyl-10H-phenothiazine-10-ethanamine
Class Membership
Psychoactive class Depressant / Deliriant
Chemical class Phenothiazine
Routes of Administration

WARNING: Always start with lower doses due to differences between individual body weight, tolerance, metabolism, and personal sensitivity. See responsible use section.

Threshold 5 - 12.5 mg
Light 12.5 - 25 mg
Common 25 - 50 mg
Strong 50 - 100 mg
Heavy 100 mg +
Total x - x hours
Onset 1 - 2 hours
Come up x - x minutes
Peak x - x hours
Offset x - x hours
After effects x hours

DISCLAIMER: PW's dosage information is gathered from users and resources for educational purposes only. It is not a recommendation and should be verified with other sources for accuracy.