The ethically proper way to dispose of unused portions of RX meds is to take them to any local pharmacy...or to your doctor. If certain meds remain unused or tampered with, you may even be able to help somebody that might not have afforded those meds...such as unused fertility meds that have to be paid for in advance. Only a doctor can redistribute, but a pharmacist as well as a doctor or surgeon can destroy the meds. Never ever ever dump them in your toilet or throw them away in your trash - somebody could dig through your trash and use your refills, not a good thing. Dumping in the toilet or sink will harm the water. Water treatment facilities can only do so much. It's good to have an added water purification system attached to your faucet. I boil water to make iced tea, and we have a purifier...just sayin'...