Duncan, South Carolina is a town in Spartanburg County that had an estimated population of 3,626 in 2019. The town’s total land area is only three and a half square miles. Even so, those in need of opioid addiction treatment can find it at a methadone clinic Duncan SC. All methadone clinics in South Carolina are accredited by SAMHSA, which stands for the Substance Abuse and Mental Health Services Administration. This accreditation requires renewal every 1 to 3 years, depending upon the type of methadone clinic, if the facility wants to continue legally operating. Accreditation requires clinics to follow guidelines established by experts in evidence-based opioid addiction rehabilitation. These experts understand the importance of having patients assessed and supervised by medical personnel, because addiction is a medical disease, and methadone is a pharmaceutical treatment and a controlled substance. Methadone requires a prescription and can only be taken under medical supervision. This is because methadone should only be taken at that individual’s precise dosage. Too little will not be effective and puts the patient at risk of relapse, and too much can be dangerous, particularly to the patient’s respiratory system.