Each year, large quantities of unused and expired medications are dumped into bins or flushed down toilets and sinks. The effects on the environment and human health are unclear but the evidence is pointing to the presence of chemicals from prescription and over-the-counter medications in the soil, drinking water and the surrounding environment. It is very important that you return unwanted medicines to a local pharmacy for safe disposal. Each year, large quantities of unused and expired medications are dumped into bins or flushed down toilets and sinks. The effects on the environment and human health are unclear but the evidence is pointing to the presence of chemicals from prescription and over-the-counter medications in the soil, drinking water and the surrounding environment. It is very important that you return unwanted medicines to a local pharmacy for safe disposal.