Atenolol Side Effects in Dogs

Posted on Sep 14 2013 - 4:02am by Emma

Atenolol Side Effects in DogsWhat is Atenolol?

Atenolol is a beta adrenergic blocker used in veterinary medicine to treat certain heart conditions such as arrhythmias. It may also be used to lower blood pressure and treat supraventricular tachyarrhythmias, premature ventricular contractions (PVC’s), and systemic hypertension. To use Atenolol on your pets you require a prescription from your veterinarian. Atenolol is used with digoxin to treat a trial fibrillation in dogs. Atenolol works by affecting the response to nerve impulses in certain parts of the body, which slows down the heart beats and decrease the blood pressure. Lower blood pressure results in supply of sufficient amount of blood and oxygen to your dog’s heart.


  • Treats hypertension, coronary heart disease, arrhythmias, and angina. In short, all type of cardiovascular problems.
  • Lowers the blood pressure for the sufficient supply of blood and oxygen to the dog`s heart.
  • If heart attack happens, use of Atenolol may reduce risk of heart complications after that.

Atenolol side effects in dogs:

There could be serious side effects of using Atenolol on your dogs. If you find any of the following giving signs of the atenolol side effects in dog`s, stop giving atenolol and seek emergency veterinary medical attention. The side effects could be:

  • Difficulty in breathing
  • Unusually slow or irregular heart beat
  • Leg pain or camping
  • Sudden weight gain
  • Upset fatigue or confusion
  • Dizziness
  • Diarrhea
  • Constipation
  • Gas
  • Nausea
  • Vomiting
  • Fainting

Even before taking Atenolol for your dog you must consult your veterinary. You should explain him the following points in detail about your dog; if your dog has:

  • Asthma
  • Low blood pressure
  • Slow heart rate
  • Heart block
  • Sick sinus syndrome
  • Heart failure
  • Other heart problems
  • Diabetes
  • Depression
  • Thyroid disease
  • Kidney disease
  • Liver disease
  • Other circulatory disease
  • If your dog is pregnant or lactating

Providing all this information to the veterinary will make it easy for him to prescribe the best medication possible for your dog which could save from serious atenolol side effects in dogs.