To dispose of any leftover medication properly, it is best to use a community take-back program or follow instructions on the medication packaging for disposal, according to the FDA. If neither option is available, disposing of medication in the garbage is acceptable as long as certain precautions are followed.
Medication disposed of in the garbage must be mixed with coffee grounds or another type of substance, notes the FDA. This is to make the medication less attractive to small children, pets and people who look for medication in the garbage. Taking the medication from its original packaging and sealing it in a plastic bag or container prevents leakage into the ground or water supply. Flushing medication down the toilet is never advisable unless the medication instructions advise otherwise.