The risks of using aspirin for dogs include stomach ulcers and intestinal hemorrhage, vomiting, diarrhea, kidney damage, liver damage and other gastrointestinal problems, according to Mountain View Vet Clinic and PetMD. Aspirin should only be given to pets as prescribed by a veterinarian.
Aspirin is a non-steroidal anti-inflammatory, or NSAID, and it is generally given to humans. Aspirin is occasionally given to pets because of its ability to lessen swelling, to reduce pain and to help eliminate stiffness, according to WebMD. However, veterinarians only prescribe aspirin to dogs for a short period of time because of its potentially dangerous side effects.. To avoid stomach problems, dogs should always be given aspirin with food.
If a dog is on aspirin or another NSAID, veterinarians ask that owners observe the dog for changes in behavior, loss of appetite, red skin, scabs on the skin, vomiting, diarrhea or black stool, reports WebMD. These symptoms are signs that the NSAID is negatively affecting the dog and should be stopped immediately. The reason for problems with aspirin in dogs is due to the high toxicity and potency of aspirin, reports Mountain View Animal Clinic. Because it interferes with platelet function, aspirin should not be given to dogs in the weeks prior to surgery.