The SAM is an expanded and more detailed version of the substance use section of the CIDI. The four diagnostic sections cover tobacco, alcohol, drugs, and caffeine. The drug section include amphetamines and other stimulants, cannabinoids, cocaine, PCP and other hallucinogens, inhalants, heroin and other opiates, barbiturates and other sedatives and tranquilizers. The SAM includes questions about onset and recency of specific symptoms, as well as the specific withdrawal symptoms and physical, social, and psychological consequences for each category of substances used. Also included are the quantity and frequency of both the heaviest and past 12 month use, and ages associated with use and remission. The SAM also assesses the respondent’s impairment and treatment seeking.