Toxicity to pets

Beta-blockers are a common type of medication used in both human and veterinary medicine for heart disease and for blood pressure regulation. While beta-blockers are commonly used in cats and dogs, these drugs have narrow margins of safety. Accidental overdoses can result in severe, life-threatening poisoning even if only a small overdose occurs.

Overdoses of beta-blockers can result in heart failure, slow heart rate (i.e., bradycardia), and severe hypotension (i.e., low blood pressure). Kidney failure may develop secondary to cardiac issues. Aggressive and immediate treatment must be initiated.
If you think your dog or cat were poisoned by a beta-blocker heart medication, call your veterinarian or Pet Poison Helpline® immediately for life-saving treatment advice.