Drug Abuse: A Clinical Guide to Diagnosis and Treatment

Drug abuse refers to the use of certain chemicals for the purpose of creating pleasurable effects in the brain. The drugs that are used for seeking pleasure can be classified into three categories, namely, depressants, stimulants and hallucinogens. Some common examples of drugs are alcohol, tobacco, opium, marijuana and cocaine. Drug abuse causes damage to the body in the long run and there is a risk of contracting infections like hepatitis B and HIV in people using needles. The diagnosis a...