Lysergic acid diethylamide (LSD) is usually swallowed. When swallowed, the effects start within 30 to 60 minutes and peak in three to five hours. The effects usually last for up to nine hours, but they can last for 24 hours.
Mescaline can be chewed or boiled into a liquid and drunk. Its effects last from four to six hours. Magic mushrooms are either eaten raw, cooked, made into a drink or dried for later consumption. The effects usually last from four to six hours.