acid is one of the least physically toxic drugs available. but it is one of the most potent psychologically.
i recon if you took too much you are more likely to suffer long-term psychological effects, such as those reported by servicemen who were fed acid on the sly while working for US and Uk armies. however acid’s effects vary wildly from person to perosn and situation to situation.
also acid evaporates quickly, so varying strength is another factor esp[ecially with tabs as opposed to microdots.
personally i have done 3 very very strong trips and hallucinated wildly for 12 hours, and coped fine and really enjoyed the experience and felt very wholesome after the effects had worn off. on the other hand, i have also done one very mild trip in a stressful environment and i suffered immense psychological difficulties for 6 months afterwards.
so it depends on the person, the envirnment, and to a lesser extent the dose, altho i would not reccommend drinking a pnt of acid even if you could get hold of it, cos i doubt you would ever come down. it must be close to a million doses.
for detailed info on LSD, go to erowid.org
