This Substance Abuse Genogram depicts the use of illegal drugs or prescription or OTC drugs or alcohol other than those for which they were prescribed or in excessive amounts. Substance abuse can cause social, physical, emotional, and occupational problems. This Substance Abuse Genogram also depicts various types of substance abuse, such as prescription medications that are overused or taken by someone to whom they were not prescribed, illegal drugs such as cannabis, LSD, ecstasy, heroin, and cocaine, and alcohol such as wine, gin, vodka, and so on. This can be caused by a person's genes, the drug's action, peer pressure, emotional distress, anxiety, depression, or environmental stress.