Lysergic acid diethylamide(LSD) Panel Test is used for in vitro quantitative detection of Lysergic acid diethylamide content in human urine. lysergic acid diethylamide (LSD) is the most potent hallucinogenic substance known to man. Dosages of LSD arc measured in micrograms, or millionths of a gram. By comparison, dosages of cocaine and heroin arc measured in milligrams, or thousandths of a gram. Compared to other hallucinogenic substances, LSD is 100 limes more potent than psilocybin and psilocin and 4,000 times more potent than mescaline.