Peer-reviewed veterinary case report
How fentanyl patches relieve pain in cats and dogs
By Hofmeister, Erik H & Egger, Christine M·Published in Journal of the American Animal Hospital Association·2004·Department of Small Animal Medicine and Surgery, United States·View original on PubMed →
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Original publication title: Transdermal fentanyl patches in small animals.
Plain-English summary
A review of studies found that transdermal fentanyl patches can effectively manage pain in both dogs and cats. For dogs, the patches start working about 24 hours after being applied and can provide pain relief for up to 72 hours, although they may not be effective during the first 6 hours after surgery. In cats, the patches begin to work in about 7 hours and offer pain relief similar to a common pain medication for the same duration. This method can be a useful option for pet owners looking for long-lasting pain management for their furry friends.
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Abstract
Fentanyl citrate is a potent opioid that can be delivered by the transdermal route in cats and dogs. Publications regarding transdermal fentanyl patches were obtained and systematically reviewed. Seven studies in cats and seven studies in dogs met the criteria for inclusion in this review. Dogs achieved effective plasma concentrations approximately 24 hours after patch application. Cats achieved effective plasma concentrations 7 hours after patch application. In dogs, transdermal fentanyl produced analgesia for up to 72 hours, except for the immediate 0- to 6-hour postoperative period. In cats, transdermal fentanyl produced analgesia equivalent to intermittent butorphanol administration for up to 72 hours following patch application.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15533967/