While adapters and refill kits are sold in the U.S., we do not endorse refilling 1 lb. propane cylinders at home. It is safe when done by a professional.
Messages on medicine disposal are inconsistent between federal agencies and often conflict with state and local regulations or guidance against flushing or trash disposal of these medications. Currently, the FDA provides a list medicines recommended for disposal by flushing on its website.
Disposal of leftover medications by flushing contributes to pharmaceutical pollution that is harming aquatic ecosystems and entering our food web. Wastewater treatment plants are designed to remove human waste and easily degraded organics, and cannot effectively remove pharmaceuticals and other complex, synthetic chemicals. Because of this, some wastewater agencies have established laws, regulations, or guidance prohibiting flushing as a disposal method for pharmaceuticals.
In an effort to end the FDA’s flush list and harmonize federal agency messaging on medicine disposal, NSAC and its affiliate organization, the California Product Stewardship Council, prepared a letter to FDA Acting Commissioner Stephen Ostroff in January 2016 that over 100 environmental and health organizations, agencies, activists and state legislators signed on to. The letter asks for a single disposal guidance and to clarify that secure medicine take-back programs provide the best disposal method for leftover household medications. An updated letter was then sent to the FDA Commissioner Dr. Robert M. Califf, M.D. in April 2016.
On May 3, 2016 NSAC received a letter from Deputy Commissioner of Policy, Planning Legislation & Analysis, Jeremy Sharp in response to the letter. The response letter states “FDA supports the proper disposal of unused prescription drugs through take-back programs and continues to include this as the first recommendation in our information to the public.” It also states, “there may be situations whereby consumers may not be able to access a take-back program. These alternative disposal options include disposal in the household trash and for a small number of drugs products, flushing down the sink or toilet as soon as they are no longer needed.”