A variety of other plants contain hallucinogens. Morning glory seeds contain lysergic acid amide which is related to LSD, but less potent. Effects similar to those of LSD begin 30 to 90 minutes after 100 or more of the seeds are chewed. Low doses can produce mild euphoria, lightheadedness, and stimulation. Larger doses can cause rapid heartbeat, agitation, vomiting, and hallucinations.
Recovery is slow and often involves an unpleasant hangover.
Although readily available, it is generally used only when other hallucinogens are not available. Eating the leaves or berries of these plants causes marked dryness of the mouth, dilated pupils, hot dry skin, blurred vision, raised body temperature, rapid heartbeat, constipation, and difficulty urinating. Larger doses produce intense stimulation of the nervous system including hallucinations, disorientation, confusion, agitation, and sometimes convulsions. A variety of prescription drugs belonging to this group are used to decrease stomach motility and secretions, dilate the pupils, relax smooth muscles and treat the tremors associated with Parkinsonism. Tolerance and dependence Tolerance to the hallucinogen drugs is not well understood.