Saturday is the next date to dump those old prescription drugs.
In October, more than 188 tons of medications were collected across the country as part of the fourth National Prescription Drug Take-Back Day, according to the federal Drug Enforcement Administration.
The aim is twofold: Protect the water supply, and keep unwanted and expired medicines away from abusers.
Collections will be held from 10 a.m. to 2 p.m. at thousands of sites across the country, including more than 100 in the Philadelphia area. Supermarkets, churches, municipal buildings and police stations are among the places taking part, under police supervision.