Although naproxen (brand name Aleve) may be prescribed by some veterinarians for pain relief, it is easy to overdose a dog. Dogs do not tolerate naproxen in the same way that humans do, says the website PetPlace.com, and many veterinarians recommend not giving naproxen to a dog due to the risks that come along with using it.
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Naproxen Uses
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Naproxen belongs to the class of non-steroidal anti-inflammatory drugs. These NSAIDs are typically prescribed for humans to reduce inflammation and relieve pain. They work by stopping the production of prostaglandins.
Toxicity in Dogs
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Naproxen may be given to dogs to aid in pain relief; however, The Merck Veterinary Manual states that dogs' bodies absorb naproxen very quickly and they are subject to severe naproxen toxiosis. Acute toxicity has been reported to occur after a single dose, Merck states. A dog who overdoses on naproxen may develop kidney disease, heart and liver failure, obstruction of the urinary tract and dehydration.
Symptoms of Toxiosis
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When a dog is experiencing naproxen toxiosis, she may exhibit signs such as vomiting, loss of balance, weakness, diarrhea, stomach pain, excessive thirst and pale mucous membranes.
Treatment
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The first step in treating naproxen toxiosis is to protect the kidneys and the gastrointestinal tract. Contact your veterinarian immediately. Intravenous fluids may be given when there is a potential of damage to the kidneys. The kidneys should be monitored and checked at 48 hours and 72 hours. A blood transfusion may be necessary while also treating any ulcers.
After the dog returns home, she should be fed a bland diet. Notify your veterinarian if the dog stops eating or begins to vomit.
Prognosis
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The dog's recovery depends on how much naproxen she ingested and how soon she was treated. In the event of complete kidney failure, the dog may not have a good prognosis.
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