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Atenolol

  • Drug Name: Atenolol
  • Common Name: Tenormin®
  • Drug Type: Beta1 blocker
  • Used For: Disarrythmias, Hypertrophic cardiomyopathy, Hypertension
  • Species: Dogs, Cats
  • How Dispensed: Prescription only
  • Available Forms: 25 mg, 50 mg and 100 mg tablets, Injectable
  • FDA Approved: No
  • Recommended Online Pharmacy: Get Atenolol at Pet360.com

General Description

 

Atenolol is a beta blocker that is used to control the heart rate of pets with irregular heart rhythms. It is also an effective blood pressure reducer.

 

How It Works

 

Atenolol blocks the beta1 receptor of epinephrine. Epinephrine is commonly called adrenaline and is responsible for the elevated heart rate and "fight or flight" response when your pet is exposed to a stressor or fearful situation. By blocking the receptor for this hormone, the heart rate is decreased, the heart’s oxygen requirement is reduced, and the blood pressure is reduced, leaving you a calm pet with an unstressed heart.

 

Atenolol has reduced effects on the beta2 blocker, which causes it to have fewer unwanted side effects than a similar drug, propranolol.

 

Storage Information

 

Keep tablets in a tightly sealed container at room temperature.

 

Missed Dose

 

Give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give your pet two doses at once.

 

Side Effects and Drug Reactions

 

 

Atenolol may result in these side effects:

 

  • Slowed heart rate
  • Lethargy
  • Low blood pressure
  • Vomiting
  • Diarrhea

 

Atenolol may react with these drugs:

 

  • Anesthesia
  • Anticholinergic
  • Calcium channel blockers
  • Negative Inotropes
  • Phenothiazine
  • Sympathomimetic
  • Atropine sulfate
  • Furosemide
  • Hydralazine
  • Insulin
  • Lidocaine
  • Prazosin

 

USE CAUTION WHEN ADMINISTERING THIS DRUG TO DIABETIC PETS, PETS WITH HEART FAILURE, OR PETS WITH KIDNEY DISEASE


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