No, Butrans (buprenorphine) patches do not have 'sulfa' containing components and may be safely used in those with 'sulfa' allergies.
Butrans contains the following ingredients:
- Levulinic acid
- Oleyl oleate
- Polyacrylate cross-linked with aluminum
Below, is the chemical structure of buprenorphine:
As you can see, there are no sulfa structures contained in buprenorphine. It is considered safe to use in those with known allergies or sensitivities to sulfa containing drugs.