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Drug Details

  • Drug Name: Asprin
  • Common Name: Aspirin®
  • Drug Type: Non-steroidal anti-inflammatory drug
  • Used For: Inflammation, Pain, Fever, Arthritis, Blood clots
  • Species: Dogs, Cats
  • FDA Approved: Yes

General Description


Acetylsalicylic Acid, commonly called aspirin, is a Non-Steroidal Anti-Inflammatory drug (NSAID) which may be used for the treatment of inflammation in pets. It is typically prescribed to treat mild pain or chronic pain associated with arthritis. It may be used to treat blood clots, pulmonary disease associated with heartworm infection, or fever in pets.


How It Works


NSAIDs work by reducing the COX-1 and COX-2 enzymes. COX-2 is involved in the formation of prostaglandins which cause swelling and inflammation. Reduction of these factors reduce the pain and inflammation your pet experiences.

Aspirin® also reduces thromboxane, effecting the productivity of platelets which are needed to clot blood. This side effect may help treat blood clots in pets.


Storage Information


Store in a tightly sealed container. Read the storage instructions on the drug label as some forms may need to be refrigerated.


Missed Dose?


If you do miss a dose, give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give your pet two doses at once.


Side Effects and Drug Reactions


Aspirin may result in these side effects:


  • Gastric ulcers (if prolonged use)
  • Loss of appetite
  • Vomiting
  • Diarrhea
  • Seizures
  • Coma
  • Loss of blood clotting capabilities


Aspirin may react with these drugs:


  • Digoxin
  • Gentamycin (and other Aminoglycoside antibiotics)
  • Anticoagulants
  • Carbonic Anhydrase inhibitors
  • Corticosteroids
  • Other NSAIDs
  • Tetracycline or it’s derivatives
  • Urinary acidifying agent
  • Urinary alkalinizing agent
  • Catopril
  • Enalapril
  • Furosemide
  • Insulin
  • Phenobarbital
  • Propranolol
  • Spironolactone
  • Other drugs that may cause ulceration of the digestive tract


USE CAUTION WHEN ADMINISTERING THIS DRUG TO CATS - Use with caution and only with the recommendation of an experienced veterinarian. Cats require a lower dose of aspirin than other pets due to fewer liver enzymes to metabolize the drug. Aspirin is considered very safe for cats at the correct dose.






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