I was reading on another board that someone had found a medication unsatisfactory and flushed it down the toilet. That is no longer the recommended way to dispose of medication. That puts it directly into the drinking water supply. Our drinking water is full of drug residue. Some cities now have drug disposal programs. Ask your doctor or pharmacist if there is one in your area. If not, wrap the medication and put it in the trash that is going to the landfill. It will take it much longer to reach the water supply and some of it may decompose.