The Flector Patch is a medicated skin patch that is applied to the skin twice daily to relieve pain caused by bruises, sprains, and strains. It is available by prescription and only comes in one strength. The patch contains a nonsteroidal anti-inflammatory drug that works by blocking the production of various inflammatory substances in the body. Potential side effects of Flector include itching and nausea.
The Flector® Patch (diclofenac patch) is a prescription medication approved to treat short-term pain caused by sprains, strains, and bruises.
(Click Flector Uses for more information on what the medication is used for, including possible off-label uses.)
The Flector Patch is made by Teikoku Seiyaku Co., Ltd. and is distributed by Alpharma Pharmaceuticals LLC.
The Flector Patch contains diclofenac, a nonsteroidal anti-inflammatory drug (NSAID). Like other NSAIDs, it works by blocking a specific enzyme known as cyclooxygenase (COX), blocking the production of various inflammatory substances in the body. However, because it works mostly where it is applied (only a small fraction of the medication actually reaches the rest of the body), the Flector Patch helps to lower the exposure to the rest of the body (which may decrease the risk of dangerous side effects).
This medication has been thoroughly evaluated in clinical studies. These studies compared the Flector Patch to a placebo (a patch with no active ingredients). These studies showed that the Flector Patch was significantly better than the placebo for relieving short-term pain of sprains, strains, and bruises.