Dog Heart Medication Pimobendan

Keeping your beloved pup healthy is one of the most important parts of being a pet owner, and for those that are dealing with heart issues in their furry family members, it can be especially anxiety-inducing. Your veterinarian may have prescribed your pup a medication called pimobendan, or better known as Vetmedin. Heart disease is a common condition among dogs, and pimobendan is a medication that has been proven to be effective in managing it. It is important for pet owners to understand how this medication works and the potential side effects it may have on their furry friend. By having a comprehensive knowledge of pimobendan, pet owners can ensure they are providing the best care possible for their pup’s heart health.

What is Pimobendan?

Pimobendan is a common veterinary heart medicine. It works by increasing the contraction of the heart and allowing blood vessels to dilate. It is commonly prescribed to treat dogs with congestive heart failure, usually caused by chronic valvular heart disease or dilated cardiomyopathy. This medication is available in chewable tablets.  As they do come in tablet form, pets can ingest large amounts of this medication, resulting in toxicity.

Symptoms of Pimobendan Poisoning

Even though veterinary medications are highly regulated and tested frequently and thoroughly, their consumption can result in various symptoms. Ingesting a large amount of pimobendan tablets can lead to deadly symptoms. Common signs to watch out for include:

  • Collapse
  • Coughing
  • Depression
  • Elevated heart rate


If you believe your dog has chewed into a pack of pimobendan, or you’ve mistaken their dose, be sure to get in touch with your veterinarian and Pet Poison Helpline at (855) 764-7661 right away for medical attention. If your dog has ingested a toxic amount of pimobendan, they can experience severe clinical signs. Treatment for poisoning may involve inducing vomiting and administering activated charcoal to bind the toxins. IV fluids may be given to provide cardiovascular support. Your pup may have to be monitored for organ damage or until heart and blood circulation stabilize. Specific treatment measures will depend on the dosage consumed and symptoms of poisoning.

There are specific instructions to follow if your dog has been prescribed pimobendan. These include the appropriate dosage and administration instructions that you need to closely follow in order for the medication to be effective and to avoid any poisoning incidents.  If you have further concerns or questions, do not hesitate to contact Pet Poison Helpline.