Erowid
 
 
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Path :   psychoactiveshealth >  hppd
Erowid is a one-of-a-kind resource
We are an educational non-profit dedicated to providing a balanced
examination of psychoactive drugs and drug use--to reduce harms,
improve benefits, and support appropriate policies. The site is made
possible by $5, $10, and $50 donations from visitors. Please pitch in!
Hallucinogen Persisting Perceptual Disorder (HPPD)
Sometimes called 'Flashbacks'