Butrans and C1 Inhibitor (Human)

• Generic Name: buprenorphine
• Dosage Forms: patch, extended release
• Other Brand Names: Butrans, Belbuca, Buprenex, Probuphine, Sublocade, Subutex

Butrans skin patches contain buprenorphine, an opioid pain medication. An opioid is sometimes called a narcotic.

Butrans skin patches are used for around-the-clock treatment of moderate to severe chronic pain that is not controlled by other medicines.

Butrans is not for use on an as-needed basis for pain.

• Generic Name: C1 esterase inhibitor (human)
• Dosage Forms: n.a.
• Other Brand Names: Berinert, Cinryze, Haegarda, Ruconest

Complement C1 esterase inhibitor is a man-made form of a protein in blood that helps control swelling in the body. People with a condition called hereditary angioedema do not have enough of this protein. Hereditary angioedema can cause attacks of swelling and symptoms such as stomach problems or trouble breathing.

Complement C1 esterase inhibitor is used in people with hereditary angioedema. Berinert is used to treat attacks of angioedema. Cinryze and Haegarda are used to prevent attacks of angioedema.

Complement C1 esterase inhibitor may also be used for purposes not listed in this medication guide.