Butrans

Butrans

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Questions & Answers

Side Effects & Adverse Reactions

There is currently no warning information available for this product. We apologize for any inconvenience.

Legal Issues

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FDA Safety Alerts

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Manufacturer Warnings

There is currently no manufacturer warning information available for this drug.

FDA Labeling Changes

There are currently no FDA labeling changes available for this drug.

Uses

Butrans is indicated for the management of moderate to severe chronic pain in patients requiring a continuous, around-the-clock opioid analgesic for an extended period of time.

History

There is currently no drug history available for this drug.

Other Information

Butrans is a transdermal system providing systemic delivery of buprenorphine, a mu opioid partial agonist analgesic, continuously for 7 days. The chemical name of buprenorphine is 6,14-ethenomorphinan-7-methanol, 17-(cyclopropylmethyl)- α-(1,1-dimethylethyl)-4, 5-epoxy-18, 19-dihydro-3-hydroxy-6-methoxy-α-methyl-, [5α, 7α, (S)]. The structural formula is:

Image 1

The molecular weight of buprenorphine is 467.6; the empirical formula is C29H41NO4. Buprenorphine occurs as a white or almost white powder and is very slightly soluble in water, freely soluble in acetone, soluble in methanol and ether, and slightly soluble in cyclohexane. The pKa is 8.5 and the melting point is about 217°C.

System Components and Structure

Three different strengths of Butrans are available: 5, 10, and 20 mcg/hour (Table 5). The active component of the system is buprenorphine. The remaining components are pharmacologically inactive. The proportion of buprenorphine mixed in the adhesive matrix is the same in each of the 3 strengths. The amount of buprenorphine released from each system per hour is proportional to the active surface area of the system. The skin is the limiting barrier to diffusion from the system into the bloodstream.

Table 5: Butrans Product Specifications
Buprenorphine Delivery Rate (mcg/hour) Active Surface
Area (cm2)
Total Buprenorphine Content (mg)
Butrans 5 6.25 5
Butrans 10 12.5 10
Butrans 20 25 20

Butrans is a rectangular or square, beige-colored system consisting of a protective liner and functional layers. Proceeding from the outer surface toward the surface adhering to the skin, the layers are (1) a beige-colored web backing layer; (2) an adhesive rim without buprenorphine; (3) a separating layer over the buprenorphine-containing adhesive matrix; (4) the buprenorphine-containing adhesive matrix; and (5) a peel-off release liner. Before use, the release liner covering the adhesive layer is removed and discarded.

Butrans cross section

Figure 1 Cross-Section Diagram of Butrans (not to scale).

The active ingredient in Butrans is buprenorphine. The inactive ingredients in each system are: levulinic acid, oleyl oleate, povidone, and polyacrylate cross-linked with aluminum.

Butrans Manufacturers


  • Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc
    Butrans (Buprenorphine) Patch, Extended Release [Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc]
  • A-s Medication Solutions Llc
    Butrans (Buprenorphine) Patch, Extended Release [A-s Medication Solutions Llc]
  • Purdue Pharma Lp
    Butrans (Buprenorphine) Patch, Extended Release [Purdue Pharma Lp]

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