Support WBURDespite Overdose Epidemic, Georgia Caps The Number Of Opioid Treatment ClinicsPlay04:25Download AudioMichell EloyJune 15, 2016 ShareMethadone and similar drugs are legal synthetic opioids that are used to help block the cravings and withdrawal symptoms of people trying to wean themselves off prescription painkillers or heroin. (Michell Eloy/WABE)