“…[6][7][8] Owing to the high morbidity and mortality addicts are often infected with, which are known to be ongoing during years of dependence, addition can be considered as a chronic condition. 9,10 Proposed by WHO as the efficient therapeutic modality in opioid dependence, MMT (Methadone Maintenance Therapy) has been implemented as an effective harm reduction programme the world over, 11,12 practiced in Iran since 2003. Korasan Razavi, a northern state with joined borders with Afghanistan, accommodates more than 500 MMT clinics.…”