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My dog accidentally ate Azo Standard. Is it dangerous for her?

Updated On September 23rd, 2025

Pet's info: Dog | Mastiff | Female | spayed | 1 year and 2 months old

I accidentally gave my dog azo standard and I thought it was cranberry is she going to be okay?

3 Answers

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on January 28th, 2016

As far as I know this is a rare intoxication in dogs (it has been reported though). It can cause hepatotoxicity and rhabdomyolysis secondary to phenazopyridine toxicity in a dog. Signs described are shifting leg lameness involving all 4 limbs, progressive reluctance to walk and severe diffuse muscle hyperesthesia (pain). I would recommend to take her to your veterinarian for a check up. Blood tests may be required to check possible liver damage and function.

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29Pet Parents found this answer helpful

Other Answers

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    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on

    In such a large dog as your's it's unlikely to do harm but it has the potential to be toxic in dogs so do not give it in the future.

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    28Pet Parents found this answer helpful

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    Answered By Christie Long, DVM

    Veterinarian, Certified Veterinary Acupuncturist

    Published on

    The active ingredient in Azo tablets is phenazopyridine. It has no known safe dosage in veterinary medicine. Because of this the wisest course of action is to take your dog in for some blood work to make sure there's no developing anemia or liver damage.

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    21Pet Parents found this answer helpful

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