The dangers of throwing prescription or over-the-counter medicines in the bin or flushing them down the sink or toilet is that their chemical components may infiltrate the water or soil supply. According to Health Canada, although the concentration levels are very low, over-time there are cumulative effects that are a result of long term exposure to trace amounts and mixtures of pharmaceuticals that can affect vulnerable aspects of the population including pregnant women, newborns and children. To help ensure that that these drugs for not pose a risk to you and others take all prescription drugs and over the counter medication to your local pharmacist for proper disposal.