You have three legal options for disposing of controlled substances at home: use a drug take-back program, flush certain high-risk medications down the toilet, or render the remaining drugs unusable and throw them in the trash. The best choice depends on what medication you have and what’s available near you.
Drug Take-Back Programs
Take-back programs are the safest and most environmentally sound way to get rid of controlled substances. The DEA hosts National Prescription Drug Take Back Days twice a year, typically in April and October, at thousands of collection sites across the country. The October 2025 event alone collected over 571,000 pounds of medication from more than 4,300 sites. Since the program began, it has collected over 10,000 tons of unused drugs.
Outside of these events, many pharmacies and hospitals with on-site pharmacies maintain permanent drop-off bins year-round. These retailers register with the DEA as authorized collectors and install locked, tamper-proof receptacles where you can deposit your unused pills, patches, or liquids with no questions asked. Law enforcement agencies also host their own collection sites. To find the nearest permanent drop box, search the DEA’s collection site locator or call your local pharmacy.
Mail-Back Envelopes
If you can’t easily get to a drop-off location, mail-back envelopes are a convenient alternative. These are prepaid, pre-addressed packages designed to be tamper-evident, tear-resistant, and spill-proof. You place your medications inside, seal the envelope, and drop it in the mail. Some pharmacies offer these envelopes at no cost, while others sell them. You can also find them through online retailers. Each envelope carries a unique identification number for tracking.
Medications You Should Flush
The FDA maintains a “flush list” of specific controlled substances considered so dangerous that keeping them in the house, even briefly in the trash, poses an unacceptable risk. These are drugs that are both commonly sought for misuse and capable of causing death from a single accidental dose. If you can’t get to a take-back option, the FDA says flushing is the safer choice for these medications.
The flush list is almost entirely opioids. It includes any medication containing fentanyl, oxycodone, hydrocodone, morphine, methadone, hydromorphone, oxymorphone, meperidine, buprenorphine, or tapentadol. Common brand names on the list include OxyContin, Percocet, Vicodin, Norco, Duragesic, MS Contin, and Suboxone, among many others. A few non-opioid medications also appear: sodium oxybate (Xyrem, Xywav), diazepam rectal gel (Diastat), and methylphenidate patches (Daytrana).
Fentanyl patches deserve special attention. Used patches still contain enough residual medication to be lethal to a child or pet. The FDA recommends folding used patches in half with the sticky sides together and flushing them immediately. Never place a used fentanyl patch in the household trash.
Disposing of Other Controlled Substances in the Trash
For controlled substances not on the flush list, and when no take-back option is available, the FDA outlines a simple at-home method:
- Remove the medication from its original container.
- Mix it with something unappealing, like used coffee grounds, dirt, or cat litter. This discourages anyone from retrieving it. Don’t crush tablets or capsules. Liquid medications get mixed in the same way.
- Seal the mixture in a plastic bag or other container.
- Throw it away in your household trash.
- Scratch out your personal information on the empty prescription bottle before recycling or trashing it.
This method works for both pills and liquid formulations. The key is making the medication unrecognizable and unpleasant to handle, so it won’t be diverted from your trash.
Why Proper Disposal Matters
Medications that enter the water supply, whether flushed or washed down drains, cause measurable harm to aquatic ecosystems. Fish and other aquatic wildlife live in contaminated water continuously throughout their lifecycles, making them far more vulnerable than humans to these compounds. Hormonal medications can cause male fish to develop female characteristics and reduce reproduction rates across populations. Common painkillers like ibuprofen and naproxen damage organ function in aquatic organisms. Antibiotics are toxic to aquatic plants and contribute to antimicrobial resistance.
The vast majority of pharmaceuticals have never been evaluated for their long-term environmental toxicity. This is why take-back programs and the trash method are preferred over flushing for most medications. The flush list exists only because certain drugs pose such an immediate danger to people in the household that the environmental tradeoff is justified.
Who Can Legally Dispose of Someone Else’s Medications
Federal law limits who can hand over controlled substances for disposal. If you’re the patient who was prescribed the medication, you can use any of the methods above. If someone has died and you’re legally responsible for their property, you can also turn in their controlled substances to an authorized collector or law enforcement. Long-term care facilities can dispose of medications on behalf of their residents. Beyond these categories, transferring controlled substances to another person, even with good intentions, falls outside what the law permits.