Hereâs how you can safely dispose of prescription drugs you donât need Law enforcement agencies across Utah are participating in National Prescription Drug Take Back Day on Saturday. (Toby Talbot | AP file photo) Law enforcement agencies across Utah are participating in National Prescription Drug Take Back Day on Saturday, April 24, 2021, to help people safely disposed of unused or expired prescription medication, such as OxyContin. | Updated: 4:06 a.m. Unused medication â like opioids â sitting in a medicine cabinet can be dangerous. Millions of people misuse prescription pain relievers, stimulants and sedatives every year, according to the National Survey on Drug Use and Health. And whether they know it or not, a majority of those drugs are obtained from family and friends.