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My dog's CHF cough worse after Lasix dose cut. Should I change meds?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 12 years and 3 months old | 38.4 lbs

My dog was diagnosed with CHF. His abdomen is still swollen. Lasix 40mg BID was reduced to 20 BID due to slight increase in labs for kidneys. His coughing is worse with the lowered dose. Should I ask the vet to change meds? He’s also on Pimobendan compounded 5mg BID.

1 Answer

Most Helpful Answer

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Answered By Claudia Fioravanti

Veterinarian

Published on April 24th, 2022

Hi there, you could try increasing it to 30 mg twice a day. In general a standard dose is 2mg/kg twice a day. If frusemide should not work , a new diuretic could be added such as spironolactone. I would recommend to discuss this with your vet. Hope this helps !

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