The effects of LSD last 8 to 12 hours, and users may be fatigued the next day. Tolerance to LSD develops very quickly. This tolerance disappears as rapidly as it develops. The most common, and safest, form of LSD is a tab from a sheet . Panic under LSD is best countered with calm and understanding.
Medication often exacerbates the problem.
LSD causes no known lasting problems, nor does it cause convulsions or seizure. There are no known cases of marijuana overdose. The effects of marijuana are highly dependent on the user's expectations. New users often feel no effect until the second or third use. Marijuana generally does not impair physical coordination, but does impair short term memory, causing users under the influence to be distracted more easily.