Addiction is a physical or psychological need for a habit-forming substance, such as a drug or alcohol. In physical addiction, the body adapts to the substance being used and gradually requires increased amounts to reproduce the effects originally produced by smaller doses. Removal of the substance causes withdrawal symptoms.

A substance can be anything that is ingested in order to produce a high, alter one’s senses, or otherwise affect functioning. The most common substances for abuse are alcohol, caffeine, and nicotine although treatment is sought for other drugs, such as cocaine, marijuana, heroin, ecstasy, special-K, inhalants, and crack.

Abuse is the wrong or improper use or misuse of a chemical such as Alcohol or prescribed or non-prescribed medications.

  • Common Disorders in this category:
  • Alcohol Abuse, Dependence, Intoxication, and withdrawal
  • Chemical Dependency, Intoxication and withdrawal
  • Drug Abuse
  • Polysubstance Abuse
  • Substance Abuse
  • Substance-Induced Disorders