A member asked:

How long should the effects of rohypnol typically last?

A doctor has provided 1 answer
Dr. Alan Ali answered

Specializes in Psychiatry

Rohipnol: Rohipnol has a long half-life of 18-26 hours, so if taken at night, effects last all day the following day.

Answered 8/2/2012

5.7k views

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