RATIONALE: Methadone is used to detoxify opiate users because it binds with opioid receptors at many sites in the central nervous system but doesn't have the same deleterious effects as other opiates, such as cocaine, heroin, and morphine. Barbiturates, amphetamines, and benzodiazepines are highly addictive and would require detoxification treatment.NURSING PROCESS STEP: ImplementationCLIENT NEEDS CATEGORY: Psychosocial integrityCLIENT NEEDS SUBCATEGORY: NoneCOGNITIVE LEVEL: Knowledge