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My dog ate borax. Is it harmful? What emergency steps should I take?

Updated on September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | neutered | 15 lbs

Hello, my small shih tzu ingested borax (roughly 1-2 tablespoon). Is this harmful to him? And if so, what steps should I take?

2 Answers

Most Helpful Answer

Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on July 30th, 2017

Generally, the biggest issue that we may see with ingestion of borax is stomach upset and vomiting - so it's very possible that you may see this. In large amounts, borax can cause kidney failure in dogs, but this is uncommon and usually the result of long-term exposures rather than a single ingestion.

If you're concerned, you can always opt to take Rocky to your nearest emergency vet for supportive care to help prevent any problems.

3Pet Parents found this answer helpful

Related Answers from Veterinarians

Answered By Summer Walker, DVM, MS
Veterinarian
Published on July 19th, 2017
The ingestion of small quantities of Borax can cause vomiting to occur. In large quantities it can cause kidney damage. It is difficult to know exactly how much was ingested since it was diluted in the water, therefore I would recommend having her evaluated by her veterinarian for blood work to monitor her kidney values. If these begin to elevate then it is possible she consumed enough to cause kidney damage. An anti-nausea medication will also help to decrease the nausea/vomiting associated with the Borax.
1Pet Parents found this answer helpful

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