Naproxen in dog and cats

Common info

Naproxen is a drug in the NSAID group. Naproxen used to reduce the pain from mild to moderate pain, reducing fever, inflammation. Naproxen can also inhibit coagulation, gastric bleeding, and toxic to the kidneys. Naproxen is very toxic to dogs and cats, causing vomiting, diarrhea, dehydration, blood in stools, liver damage, kidney damage, and ulceration of the digestive tract.


Naproxen was first sold in 1976 by Syntex.


Naproxen used to treat pain, inflammation, fever. In humans, dogs, and cats, if using high amounts of Naproxen, it will cause severe intoxication, ulceration of the digestive tract, and kidney damage.


  • Kidney damage
  • Ulceration of the digestive tract
  • Abdominal pain
  • Blood in stool
  • Dehydration
  • Diarrhea
  • Liver damage
  • Loss of appetite
  • Vomiting
  • Weight loss

When dogs and cats receive a Naproxen, it will cause anorexia, vomiting, abdominal pain, dehydration, diarrhea, liver damage, kidney damage, ulceration of the digestive tract, stomach ulcer, weight loss, and blood in the stool.

Treatment and Prevention

If dogs and cats get poisoned by Naproxen. You should consult a doctor immediately. The disease can prevent by not giving Naproxen to your dogs and cats.

  1. Wikipedia | Information of Naproxen
  2. Petmd | Naproxen
  3. PetPlace | Naproxen Toxicity in Cats
  4. PetPlace | Naproxen (Naprosyn®, Aleve®) for Dogs
  5. Pet Poison Helpline | NAPROXEN
  6. Wag! | Naproxen Poisoning in Dogs
  7. Wikipedia | Information of Naproxen (Thai version)
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