“…Among studies with no intervention, the rate of opioid disposal was 4.9% to 46.5% [1,2,4,9,11,16,29]. There was an intervention group in 9 (56%) studies, with rate of opioid disposal ranging from 22% to 87% [6,7,17,18,20,23,28,32,34]. In 3 studies, the intervention was an opioid disposal kit or bag [6,23,34].…”