Mescaline is classified by the Drug Enforcement Administration (DEA) as a Schedule I drug. It possesses a high potential for abuse and can produce a host of side effects in its users. The most common effects of abuse are psychological dependence and tolerance from continued use.Since the substance does not produce a physical dependence, the most common mescaline withdrawal symptoms are emotional and mental as opposed to physical. The most common symptoms include:
Anxiety
Depression
Agitation
Insomnia