There is no aspirin made especially for canines. Aspirin is considered a non-steroidal anti-inflammatory drug, or NSAID. While there are certain NSAIDs made for dogs, such as carprofen, deracoxib, and etodolac, aspirin does not come in any specifically canine variety, according to WebMD.
It is important not to give aspirin to dogs without consulting first with a veterinarian. In certain circumstances a veterinarian may recommend aspirin for a dog, but usually only for a limited amount of time and in a limited dose. Long-term use of aspirin in dogs carries a risk of side effects, such as bleeding. In order to avoid stomach issues, it is best to give dogs aspirin in coated form, and with food, states WebMD.