LSD is not considered an addictive drug since it does not produce compulsive drug-seeking behaviour. However, in common with many of the addictive drugs, LSD produces tolerance, so some users who take the drug repeatedly must take progressively higher doses to achieve the state of intoxication that they had previously achieved. This is an extremely dangerous practice, given the unpredictability of the drug. The dose normally taken in the sixties was 250 g. This produces a different level of consciousness which provides dramatic new insights but which may prove hard to relate to everyday life.
Hallucinations can be powerful, but can be distinguished from reality.
The experience may be personal when communication is difficult, although in some situations trips are shared as though telepathically. There is so little that it causes no physical damage, and purity can be pretty well guaranteed simply because active amounts of other drugs would not fit on a blotter. While we are talking about the uses of psychedelic drugs, it is appropriate to discuss their dangers. This has been a matter of controversy since the 1960s. Drug users sometimes would not confess that they had any problems, because doubts and regrets were supposed to be a sign of rigidity or repression or some other inadmissible personal problem.