This is an academic paper that examined an intervention that provided caregivers of patients in a pediatric emergency department education on safe medication storage and disposal as well as a lock box. Findings show that, at baseline, very few caregivers engaged in safe medication storage and disposal, but, after the intervention, a large majority (90%) used the lock box.
Webb, A.C., Nichols, M.H., Shah, N., Monroe, K.W. (2020). Effect of lock boxes and education on safe storage of medications. Injury Epidemiology, 7(Suppl 1), 21.