''Methamphetamine, a derivative of amphetamine, is a powerful stimulant that affects the central nervous system. Chronic methamphetamine abuse can lead to psychotic behavior including intense paranoia, visual and auditory hallucinations...'' (quote).
An excellent online map locator for drug and alcohol abuse treatment programsfor the whole USA. The site is from the US Dept. of Health and Human Services. Search for the drug and alcoholism treatment programs by clicking on the map.