A Suboxone prescription is good for six months from the date it was written. After that six-month window closes, a pharmacy cannot fill it, and your prescriber must write a new one. Within that same six months, the prescription can also be refilled up to five times if your provider authorized refills. These two limits work together: whichever one you hit first ends the life of that prescription.
The Six-Month, Five-Refill Rule
Suboxone is classified as a Schedule III controlled substance under federal law. All Schedule III medications follow the same prescription expiration rules set by the DEA. A prescription expires six months after the date it was issued, and no more than five refills are permitted on a single script. Once you’ve used all five refills or the six months have passed, your prescriber must write an entirely new prescription for you to continue filling.
Here’s how that plays out in practice. If your provider writes a 30-day prescription with five refills, you’d have enough medication for about six months total, which lines up neatly with the expiration window. But if your provider writes a 14-day supply with five refills, you’d use up all five refills in about three months, well before the six-month expiration date. At that point you’d need a new prescription even though the original hasn’t technically expired by date.
How Supply Length Changes During Treatment
The number of days’ worth of medication on each prescription typically grows as your treatment progresses. Federal guidelines from SAMHSA recommend that prescribers start with a limited supply, sometimes just several days or one week per prescription with no refills, until you’ve demonstrated stability. This helps reduce the risk of diversion early in treatment.
Once you’re in a stable maintenance phase, prescriptions commonly cover a full 30-day supply. Some states put specific limits on this. Ohio, for example, caps buprenorphine prescriptions at a one-month supply for the first twelve months of treatment when using sublingual formulations like films or tablets. Other states may have their own restrictions that are stricter than the federal baseline, so the rules you experience at the pharmacy can vary depending on where you live.
Telehealth Prescriptions
If you receive your Suboxone prescription through telehealth, a separate federal rule applies. A prescriber who has never seen you in person can issue prescriptions covering up to six calendar months of medication, split across several individual scripts. After that initial six-month telehealth window, you’ll need either an in-person evaluation or a different qualifying telehealth arrangement to continue receiving prescriptions. This rule, finalized in early 2025, also allows the initial prescriptions to be issued through audio-only visits, meaning a phone call without video can be sufficient.
State Laws Can Shorten the Window
Federal law sets the ceiling, but your state may lower it. Some states impose additional requirements on how buprenorphine products are prescribed, including shorter initial supply limits, mandatory check-ins, or restrictions on co-prescribing with certain other medications. Ohio’s rules illustrate this well: prescribers there must cap sublingual buprenorphine at a one-month supply during the first year and cannot exceed 24 milligrams per day without specialist involvement.
Because of these state-level differences, the practical answer to “how long is my prescription good for” depends partly on where you fill it. The six-month federal expiration and five-refill cap are universal, but your state or even your individual prescriber’s policies may mean you’re getting new prescriptions more frequently than that maximum allows.
What Happens if Your Prescription Expires
If you show up at the pharmacy after the six-month mark, the pharmacist will reject the prescription. They cannot make exceptions to this rule, even if you have refills remaining. You’ll need to contact your prescriber for a new script. Since gaps in buprenorphine treatment can lead to withdrawal symptoms and increased cravings, it’s worth tracking your prescription dates and scheduling follow-up appointments before your current script runs out.
If you have leftover Suboxone films or tablets at home, the manufacturer recommends storing them at room temperature (around 77°F). The medication itself has a shelf life printed on its packaging that’s separate from your prescription’s legal validity. Expired or unused films should be flushed down the toilet if a drug take-back program isn’t available nearby, per the manufacturer’s disposal guidance.