Many urban legends and misconceptions about classified drugs have been created and circulated among children and the general public, with varying degrees of veracity. These are commonly repeated by organizations which oppose all classified drug use, often causing the true effects and dangers of drugs to be misunderstood and less scrutinized. The most common subjects of such false beliefs are LSD, cannabis, and MDMA. These misconceptions include misinformation about adulterants or other black market issues, as well as alleged effects of the pure substances.
Some of the strangest urban legends told are those about lysergic acid diethylamide (LSD), a potent psychedelic drug that gained popularity in several countries in the 1960s and 1970s, and experienced a brief resurgence in the mid to late 1990s before declining from 2000 onward. The drug's relation to the 1960s counterculture was likely part of the reason for such legends.
"Anyone caught selling LSD can be charged with attempted murder." This is a common urban legend that the psychotropic effect of LSD is such an extreme danger to human life that the seller could face charges of attempted murder or manslaughter. This myth may have origins in stories about long prison sentences for possession or sale of LSD, that may have been comparable to sentences given to those convicted of murder.