The first time that I took LSD, I accepted three and a half tabs on my tongue from a man dressed up in a monkey suit. Despite the hot summer weather, I raided the winter wardrobe of the house I was ...

A massive backlash against LSD eventually culminated in a 1970 Congressional law declaring it a Schedule 1 drug, meaning it officially has "no accepted medical use" in the U.S.

LSD is an extremely potent, long-lasting psychedelic drug: A dose of just 100 micrograms is enough to send someone on a hallucinatory trip that can last a whole day. Now, scientists report that the ...

It’s no secret that LSD causes vivid hallucinations, altered states of consciousness, one-ness with the universe, and a host of other psychedelic effects. But ever since the trippy chemical was ...

One drop of LSD can erase your entire sense of being until—interminable hours later—you recapitulate your identity, one puzzle piece at a time. Beyond that and the iconic kaleidoscope visual effects, ...