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Selegiline or L-Deprenyl is a centrally acting, selective, irreversible monamine oxidase-B (MAO-B) inhibitor that is FDA-approved for use in dogs for the treatment of canine cognitive dysfunction and pituitary-dependent Cushing’s disease. Selegiline is approved for use in humans as an adjunct for the treatment of Parkinson’s disease.
Monoamine oxidase inhibitors primarily act by increasing dopamine levels in the brain. Selegiline is metabolized into L-desmethylselegiline, amphetamine, and methamphetamine. All of these metabolites act as CNS stimulants. At higher doses selegiline also may inhibit MAO-A. Selegiline is primarily excreted in the urine.
We can let your veterinarian know that you are interested in our compounded Selegiline.
Selegiline is the only FDA-approved treatment for canine cognitive dysfunction. Although the onset of action can be variable (between four and12 weeks), most dogs show some improvement after one month of treatment and there may be continued improvement over time. The neuroprotective effects of selegiline are thought to be due to increased dopamine levels. Selegiline does not cure canine cognitive dysfunction but can improve quality of life for both the pet and the owner. Selegiline has also been used off-label for cognitive dysfunction in the cat.
Selegiline is also approved for use in pituitary dependent hyperadrenocorticism (PDH). It is less commonly used for the treatment of PDH as more recent research on efficacy has not been particularly supportive.
There are a number of potential drug interactions between MAO inhibitors in humans that may be of significance in the dog. There is very little specific veterinary information regarding these interactions. In human medicine, the recommended washout time for MAO inhibitor drugs and other drugs that may interact can be weeks.
If acute overdose is recognized promptly, gut-emptying protocols may be of benefit.
Monoamine Oxidase Inhibitor
May Be Prescribed by Vets for:
Canine cognitive dysfunction, Cushing's Disease
Search for Available Dosage Forms
Barbara Forney, VMD
Dr. Barbara Forney is a veterinary practitioner in Chester County, Pennsylvania. She has a master's degree in animal science from the University of Delaware and graduated from the University of Pennsylvania School of Veterinary Medicine in 1982.
She began to develop her interest in client education and medical writing in 1997. Recent publications include portions of The Pill Book Guide to Medication for Your Dog and Cat, and most recently Understanding Equine Medications published by the Bloodhorse.
Dr. Forney is an FEI veterinarian and an active member of the AAEP, AVMA, and AMWA.
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This content is intended for counseling purposes only. This content is informational/educational and is not intended to treat or diagnose any disease or patient. No claims are made as to the safety or efficacy of mentioned preparations. The compounded medications featured in this content have been prescribed and/or administered by prescribers who work with Wedgewood Pharmacy. You are encouraged to speak with your prescriber as to the appropriate use of any medication. Wedgewood Pharmacy’s compounded veterinary preparations are not intended for use in food and food-producing animals. All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.