Mark Ruscin, PharmD, FCCP, BCPS, Southern Illinois University Edwardsville School of Pharmacy; Sunny A Linnebur, PharmD, BCPS, BCGP, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Reviewed / Revised Jul 2021 | Modified Sep 2022 View Patient Education Prevalence of prescription drug use increases substantially with age.