LSD or acid (lysergic acid diethylamide) is the most commonly used hallucinogen (also known as psychedlics). It is considered a typical hallucinogen causing similar effects to other hallucinogens like mescaline, psilocybin (mushrooms), and ibogaine. LSD became popular in the counterculture of the 1960s and 1970s, but since then its use has been limited to people in the Rave or club scenes. According to the College Alcohol study, only 9.4% of Brown students have ever used LSD.

LSD is usually taken by ingesting small tabs of paper (frequently placed under the tongue) which have been soaked in the liquid form of the drug then dried. In rare cases it is taken in a liquid, gelatin, or tablet form. Sometimes a dose is soaked into a sugarcube. Doses range from 20 to 100 micrograms now, though in the 1960s they ranged from 100 to 200 micrograms. Because LSD is produced illegally, it is difficult to know how strong a dose is. The effects of the drug begin in about 30 minutes and last up to 12 hours. It can be very difficult to sleep if LSD has been taken in the last 6 hours.

acid n.
Acid is a ridiculously powerful drug. It's measured in micrograms (that's 10 to the negative 6, kids). A few hundred micrograms is enough for a fairly decent trip that'll last between 8-12 hours.
Guaranteed to blow your freakin' mind. I strongly suggest listening to the Grateful Dead while under the influence. It is not advisable to drive or operate heavy machinery while tripping. Going to work or attending class while zonked out of your gourd is also discouraged; the fact that your pupils will swallow your entire eye is a dead give away that you're on something.

Having a Ph of less that 7.0

acid-The wonderful gateway in your pocket to a world that is yours for the creating, whether it be talking frogs, stary faces on apple trees that just wont blink and you're sure that they know your name or maybe just the good old headmash that convinces you that you ARE, in fact, a carrot.
A truly marvellous man made hallucinogen that could, one day, replace calpol.

The drug LSD. Lysergic acid diethylamide.

slang for LSD, a hallucinogenic substance synthesized from Ergot, a fungus which grows on rye. There are no known adverse physical effects, however, it may cause psychological problems and/or flashbacks. It is commonly distributed in liquid form, geltabs, sugarcubes and blotter-paper.

the gateway to transcendence and temporary enlightenment. chemical keys to the gates of heaven.

Acid , LSD is the most powerful psychadelic drug on the streets. It will make you experience things you have never thought would happen. As a comparison, some think it as a video game, but in a more broader sense it gives your mind a very trippy effect and you can begin to see trails, dots, inanimate objects doing human things. Boosts Creativity a lot.