Furosemide (Lasix) & Enalapril
Together for Dogs with Heart Disease
Same rationale as furosemide + benazepril. Enalapril blocks the hormonal response that causes fluid retention while furosemide directly removes excess fluid.
Why are these prescribed together?
This combination addresses heart failure from two angles: furosemide provides immediate fluid removal while enalapril prevents the body's compensatory fluid retention. Before pimobendan became widely available, this was the standard first-line heart failure treatment.
How they interact
Both lower blood pressure and both affect kidney function. Together, kidney monitoring is essential. Enalapril is solely kidney-cleared, making monitoring even more important when combined with a diuretic that can cause dehydration.
Dosing and timing tips
Enalapril twice daily, furosemide 1-3 times daily. Can be given together. Ensure consistent timing.
Monitoring needed
Kidney values every 1-3 months initially. Electrolytes. Hydration status. Body weight tracking.
Important warnings
Same cautions as furosemide + benazepril
If appetite drops or creatinine rises, vet may reduce enalapril dose or switch to benazepril
Always provide fresh water
Used for these conditions
Learn about each medication
Other combinations with these drugs
Cardiac protocols stack up over time. These pages cover the other combinations your dog may end up on.
Furosemide (Lasix) & Benazepril
A foundational combination in heart failure management. Furosemide removes fluid while benazepril reduces the hormonal response that causes fluid retention.
Furosemide (Lasix) & Spironolactone
A complementary diuretic combination. Furosemide is a powerful loop diuretic that depletes potassium, while spironolactone is a mild potassium-sparing diuretic that helps balance this effect.
Pimobendan (Vetmedin) & Enalapril
Similar to pimobendan + benazepril. Enalapril is another ACE inhibitor that reduces cardiac workload. Often used interchangeably with benazepril depending on vet preference.
Pimobendan (Vetmedin) & Furosemide (Lasix)
The most common combination for dogs in congestive heart failure. Pimobendan strengthens the heart while furosemide removes excess fluid from the lungs.
Important:Never start, stop, or adjust your dog's medication without consulting your veterinarian. The dosages and protocols described here are general references - your vet will determine the right approach for your dog based on their individual condition, weight, and overall health.