Aim: The reason behind failed back syndrome in some cases may be peridural fibrosis following spinal surgery. Many attempts have been shown to stop formation of peridural fibrosis. Nonsteroidal anti-inflammatory drugs (NSAIDs) inhibit the inflammatory and fibroblastic response. One of the most effective nonsteroidal anti-inflammatory drugs is tenoxicam, an oxicam derivative. This study suggests that topical application of tenoxicam is an effective way of preventing spinal peridural fibrosis developing after laminectomy in rats.