Some hallucinogens, like PCP, can be addictive. Others, like LSD, can result in a tolerance, meaning that users need to take higher doses of the drug to achieve the same effects. If one tries to withdraw from the drug on one’s own, it can lead to a number of withdrawal symptoms such as cravings, fatigue, irritability and a reduced ability to experience pleasure. Therefore, if someone is struggling with hallucinogens addiction, it is advisable to seek help from an expert sooner rather than later.

As with stimulants, treatment options for hallucinogens focus on providing a calming and safe environment. There is no medical treatment for intoxication or withdrawal of hallucinogens. Placing patients in a dimly lit, quiet room can help ease their anxiety resulting from intoxication. If they appear as a danger to themselves or others, then physical or chemical restraints such as haloperidol can be used as a temporary measure. If symptoms do not resolve, then admission to a psychiatric hospital may be required.