Pet Medication 101: AspirinIt’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 aspirin is used for, how it works, and potential side effects in cats and dogs. Always consult a veterinarian before giving your pet any medication, including aspirin.FirstVet is the #1 online video veterinary service.FirstVet offers video calls with experienced veterinarians for just $35. You can get a consultation within minutes by downloading the FirstVet app for free from the Apple App Store or Google Play Store. Over 500,000 users trust FirstVet to care for their animals. Rating: 4.9 - more than 1600 reviewsRating: 4.9 - more than 1300 reviewsRating: 4.9 - more than 1600 reviews Download app 1. Drug Name:aspirin2. Common Name or Brand Name(s):Many different brand names (Bayer, etc.)3. How Dispensed:Over-the-counter and prescription4. Forms:Available in tablets, granules, and boluses (for animal use), buffered and unbuffered (uncoated and coated). Common strengths are 81 mg and 325 mg.5. Drug Type/Class:Aspirin is in a group of medications called salicylates and is also a non-steroidal anti-inflammatory (NSAID).6. Uses in Cats and Dogs:Analgesic, anti-inflammatory, anti-fever, platelet aggregate inhibitor7. How it Works:COX2 inhibitor (reduces prostaglandin and thromboxane synthesis). These substances trigger many processes in the body, including inflammation.8. Side Effects and/or Signs of Overdose:Nausea, anorexia, and vomiting, with or without blood, are the most common. Bleeding from GI tract.9. Drug Interactions:Too many to list - some potential drug interactions include ACE inhibitors, antidepressants, calcium channel blockers, some heart and arthritis medications.Aspirin should never be given to a pet that is taking steroids (this can lead to GI ulceration or liver and kidney problems).10. Cautionary Statements:Do not give unless directed by your veterinarian. Aspirin is very dangerous in cats, especially. Stop using one week before scheduled surgery to decrease the risk of bleeding.Read more:Signs of Pain in DogsSigns of Pain in DogsHave more questions about aspirin or other medications for your pet?Schedule a video consult to speak to one of our vets.