Traveling with a controlled substance medication requires some planning, whether you’re going across the country or across a border.

Domestic travel (within the U.S.):

  • Keep buprenorphine in its original prescription packaging
  • Carrying a copy of your prescription or a note from your prescriber is a reasonable precaution, though generally not required for domestic flights
  • TSA does not prohibit bringing prescribed medications, including buprenorphine, in carry-on luggage

International travel — this requires more preparation:

  • Buprenorphine’s legal status varies significantly by country — some countries restrict or prohibit it entirely, regardless of your U.S. prescription
  • Research the specific laws of your destination country well before traveling — a U.S. prescription does not override another country’s controlled substance laws
  • Carrying your prescription, a letter from your prescriber, and sometimes additional documentation (depending on the country) is often necessary
  • Some countries require advance permission or notification for bringing in controlled substance medications

A practical tip: Contact the embassy or consulate of your destination country directly to confirm current rules — these can change, and general guidance can become outdated.

If you’re on a long-acting injectable (Sublocade, Brixadi): Timing travel around your injection schedule, or coordinating with a provider at your destination if you’ll be away for an extended period, is worth planning in advance. [injectable formulations article]

Medically reviewed by [pending]. Sources: TSA guidance on medications, U.S. Department of State travel resources (country-specific rules change — verify current status directly).