Is Beta-blockers toxic to cats?

Extreme severity No safe amount — No amount is considered safe.

Yes. Even a small amount can be life-threatening — treat any exposure as an emergency and contact a vet immediately.

Symptoms to watch for

Nausea
Vomiting
Weakness
Collapse
Slowed heart rate
Lethargy
Heart failure
Hypotension
Acute kidney failure

How vets treat it

Immediate decontamination, heart and blood pressure monitoring, aggressive IV fluids, and symptomatic supportive care. Severe cases may require high-dose insulin therapy or intravenous lipid emulsion.

Why it's dangerous

Beta-blockers have a narrow margin of safety and cause toxicity by severely slowing the heart rate and lowering blood pressure, potentially leading to heart failure and secondary acute kidney failure.

Toxic compound: Beta-adrenergic antagonists

Good to know

Beta-blockers have a very narrow margin of safety; even a small amount can result in life-threatening poisoning.

Sources

Pet Poison Helpline

This page is informational and is not veterinary advice. If your pet has been exposed to something risky, contact your vet or an animal poison control line right away.

More substances toxic to cats

5-fluorouracil (5-FU) Extreme severity Acetaminophen Extreme severity Ambien Extreme severity Amphetamines Extreme severity Everything toxic to cats →

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