Metformin
DangerCauses severe hypoglycemia and lactic acidosis. Especially dangerous in cats.
Quick Answer: Is Metformin Toxic to Dogs or Cats?
Use this short answer first, then read symptoms and what to do next.
Is Metformin toxic to dogs?
Yes. Treat Metformin as an emergency risk for dogs. Call your veterinarian or a pet poison hotline right away after exposure.
Is Metformin toxic to cats?
Yes. Treat Metformin as an emergency risk for cats. Call your veterinarian or a pet poison hotline right away after exposure.
Symptoms to watch for
Vomiting, lethargy, low blood sugar, weakness, collapse, acidosis
What should I do now?
EMERGENCY. Contact vet. Blood sugar monitoring needed.
Dogs
Emergency risk
Cats
Emergency risk
Risk level
Danger
Symptoms
Vomiting, lethargy, low blood sugar, weakness, collapse, acidosis
What to do now
EMERGENCY. Contact vet. Blood sugar monitoring needed.
Explore Related Safety Hubs
Use these hub pages for broader dog, cat, cleaner, and emergency planning guidance.
Dog Toxicity Guide
Compare Metformin with common dog food, plant, medication, and household toxicity risks.
Open hubCat poisoningCat Toxicity Guide
See cat-specific guidance for Metformin, plants, cleaners, foods, and medication risks.
Open hubEmergency planningVet Cost Hub
Plan for emergency exams, toxin ingestion care, hospitalization, and insurance decisions.
Open hubSymptoms to Watch For
Vomiting, lethargy, low blood sugar, weakness, collapse, acidosis
What to Do
EMERGENCY. Contact vet. Blood sugar monitoring needed.
Plan ahead for emergency vet bills
Poisoning, broken bones, and emergency surgery can get expensive quickly. Compare costs and accident coverage before you need it.
Pet Poisoning Emergency Checklist
A one-page checklist for symptoms, product labels, emergency contacts, and what to bring to the clinic.
Clinical References
Quick Answers
Is Metformin poisonous to dogs?
Is Metformin toxic to cats?
What symptoms can Metformin cause in pets?
What should I do if my pet ate Metformin?
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