Pet Medication 101: Naproxen It’s important to understand a medication’s uses and side effects before giving it to your pet. This medication info sheet is meant to give you a good understanding of what Aleve (naproxen) is used for, how it works, and potential side effects in cats and dogs. Always consult a veterinarian before giving your pet any medication. 1. Drug Name: 2. Brand Names: 3. How Dispensed: 4. Forms: 5. Drug Type/Class: 6. Uses for Cats and Dogs: 7. How it Works: 8. Side Effects and/or Signs of Overdose: 9. Drug Interactions: 10. Cautionary Statements: Read more: Have more questions about naproxen or other medications for your pet? Are you concerned about your pet?Book a video consultation with an experienced veterinarian within minutes.Professional vet advice onlineLow-cost video vet consultationsOpen 24 hours a day, 365 days a year Book Video Consultation 1. Drug Name:naproxen2. Brand Names:Naprosyn, Aleve3. How Dispensed:Over-the-counter and prescription4. Forms:Tablet and capsule ( 200 mg, 250 mg, 375mg, 500mg), Liquid (125mg/5ml)5. Drug Type/Class:Non-steroidal anti-inflammatory (NSAID)6. Uses for Cats and Dogs:No approved uses in small or exotic animals. Naproxen is approved in horses.7. How it Works:Naproxen and other NSAIDs work by decreasing levels of prostaglandins (chemicals in the body that lead to pain, inflammation, and fever). By blocking cyclooxygenase (the enzyme that produces prostaglandins), naproxen reduces these symptoms.8. Side Effects and/or Signs of Overdose:GI distress (diarrhea, ulcers), blood abnormalities (low protein, decreased hematocrit), renal problems (fluid retention), possible neuropathies. Signs of overdose include vomiting, lethargy, anorexia, bloody vomit or stool, anemia.9. Drug Interactions:Naproxen interacts with aminoglycosides, anticoagulants, aspirin, corticosteroids, furosemide10. Cautionary Statements:Do not use unless other NSAIDs that are approved haven’t worked. Do not use with a history of gastric ulcers. This medication is considered to be toxic to pets, especially cats.Read more:Signs of Pain in DogsSigns of Pain in CatsPet First Aid: How to Treat Minor WoundsHave more questions about naproxen or other medications for your pet? Schedule a video consult to speak with one of our vets.