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Senior dog with kennel cough & heart failure: meds making him worse?

Updated On September 23rd, 2025

My dog is 10 years old with a bad Kennel cough. I took him to a vet and he said because my dog is old he has heart failure and water on his lungs and gave him two medications ( aldactone and enalapril) it almost killed my dog. He lost appetite and is super lazy, its been 3 days and no improvement so far. Please help I don't want my dog to die because of a stupid medical mistake.

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on March 14th, 2017

Since there has been no improvement, consider a recheck or second opinion. Kennel cough typically resolves on its own within a week or two but the cough can linger for longer. In older dogs, younger dogs and immune compromised dogs, it may lead to secondary infections and pneumonia. Chest xrays should be done to assess the heart and lungs. An echocardiogram (ultrasound of the heart) can be done to assess cardiac architecture and function. Afterwards, cardiac medications can be dispensed if indicated.

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