Erowid
 
 
Plants - Drugs Mind - Spirit Freedom - Law Arts - Culture Library  
   
hppd
1,422
0
Donations MATCHED in September
Contribute $20 or more during our annual support-a-thon
and your donation will be DOUBLED.
Help spread accurate info about psychoactive drugs!
Hallucinogen Persisting Perceptual Disorder (HPPD)
Sometimes called 'Flashbacks'