Dispensation of antiretroviral therapy and methadone maintenance therapy at the same facility in a low-barrier setting linked to optimal adherence to HIV treatment.

The odds of achieving optimal adherence to ART were 56% higher during periods in which MMT and ART medications were dispensed at the same facility, in a low-barrier setting. Our findings highlight the need to consider a simpler integrated approach with medication dispensation at the same facility in low-threshold settings.