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Ramipril

Prescription
ACE inhibitor (Angiotensin-converting enzyme inhibitor)
Last reviewed 21 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
4 available
Formulations
3

Mechanism of action

Prodrug converted to ramiprilat; inhibits angiotensin-converting enzyme, reducing angiotensin II production, decreasing aldosterone secretion, and lowering systemic vascular resistance

At a glance

Class
ACE inhibitor (Angiotensin-converting enzyme inhibitor)
Schedule
Prescription
Storage
Below 25°C, protect from moisture

Dosing

🐕

Dog

Congestive heart failure, chronic kidney disease
Dose
0.125–0.25 mg/kg
Route
PO
Frequency
SID
Max dose
10 mg
Duration: Long-term / lifelong
🐈

Cat

Congestive heart failure, proteinuria
Dose
0.125–0.25 mg/kg
Route
PO
Frequency
SID
Max dose
2.5 mg
Duration: Long-term / lifelong

Formulations

💊

Tablet — 3

Strength
1.25mg
Available in India
Strength
2.5mg
Available in India
Strength
5mg
Available in India

Storage

Below 25°C, protect from moisture

Safety

Absolute contraindications — do not use

  • Bilateral renal artery stenosis
  • Hypotension

Use with caution

  • Concurrent potassium-sparing diuretics
    Risk of hyperkalemia

Adverse effects

Common
Hypotension
Mild azotemia
Inappetence
Serious
Hyperkalemia
Acute renal failure
Angioedema

Monitoring parameters

Blood pressureBUN/CreatinineSerum potassiumUrine protein:creatinine ratio

Interactions

No documented interactions.

Brands

International

Vasotop
Intervet/MSD Animal Health
Altace
Sanofi

India

Cardace
Sanofi India
Ramistar
Lupin

FAQs

Frequently asked questions

What is Ramipril?
Ramipril is a ace inhibitor (angiotensin-converting enzyme inhibitor) used in pets. Prodrug converted to ramiprilat; inhibits angiotensin-converting enzyme, reducing angiotensin II production, decreasing aldosterone secretion, and lowering systemic vascular resistance
What is Ramipril used for in pets?
Ramipril is used in veterinary medicine for: Congestive heart failure, chronic kidney disease; Congestive heart failure, proteinuria.
What is the Ramipril dose for dogs?
For dogs, Ramipril is typically dosed as follows — Congestive heart failure, chronic kidney disease: 0.125–0.25 mg/kg PO SID. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Ramipril dose for cats?
For cats, Ramipril is typically dosed as follows — Congestive heart failure, proteinuria: 0.125–0.25 mg/kg PO SID. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What are the side effects of Ramipril?
Common: Hypotension, Mild azotemia, Inappetence. Serious (call your vet immediately): Hyperkalemia, Acute renal failure, Angioedema.
Does Ramipril need a prescription?
Yes. Ramipril is a prescription medication and should only be administered under veterinary supervision.
When should Ramipril not be used?
Do not use Ramipril if: Bilateral renal artery stenosis; Hypotension.

References

References

Textbooks & handbooks

  • Plumb, D.C. Plumb's Veterinary Drug Handbook. 10th ed., Wiley-Blackwell, 2023.
  • Vail, D.M., Thamm, D.H., & Liptak, J.M. (eds.). Withrow & MacEwen's Small Animal Clinical Oncology. 6th ed., Saunders/Elsevier, 2020.
  • Riviere, J.E., & Papich, M.G. (eds.). Veterinary Pharmacology and Therapeutics. 10th ed., Wiley-Blackwell, 2018.
  • National Research Council. Nutrient Requirements of Dogs and Cats. National Academies Press, Washington DC, 2006.
  • The Merck Veterinary Manual. Merck & Co., Online edition. https://www.merckvetmanual.com/

Clinical guidelines & consensus

  • Fletcher, D.J., Boller, M., Brainard, B.M., et al. "RECOVER Evidence and Knowledge Gap Analysis on Veterinary CPR." Journal of Veterinary Emergency and Critical Care, 2012;22(S1):S102–S131.
  • American Animal Hospital Association. 2018 AAHA Diabetes Management Guidelines for Dogs and Cats. AAHA Press.

Journals & peer-reviewed studies

  • Hogan, D.F., Fox, P.R., Jacob, K., et al. "Secondary prevention of cardiogenic arterial thromboembolism in the cat: The FAT CAT study." Journal of Veterinary Cardiology, 2015;17(Suppl 1):S306–S317.
  • Boswood, A., Häggström, J., Gordon, S.G., et al. "Effect of Pimobendan in Dogs with Preclinical Myxomatous Mitral Valve Disease and Cardiomegaly: The EPIC Study — A Randomized Clinical Trial." Journal of Veterinary Internal Medicine, 2016;30(6):1765–1779.
  • ASPCA Animal Poison Control Center. Toxicology and Poison Management Guidelines. American Society for the Prevention of Cruelty to Animals. https://www.aspca.org/pet-care/animal-poison-control

Regulatory & approvals

  • Central Drugs Standard Control Organisation (CDSCO), Government of India. Veterinary Drug Approval Registry, 1969–2026. Directorate General of Health Services. https://cdsco.gov.in/

Databases

  • Washington State University, College of Veterinary Medicine. Veterinary Clinical Pharmacology Laboratory (VCPL) — MDR1 Multidrug Sensitivity Database. https://vcpl.vetmed.wsu.edu/
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

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Prodrug hydrolyzed to active metabolite imidaprilat which inhibits angiotensin-converting enzyme. Reduces angiotensin II and aldosterone, decreasing afterload, preload, and cardiac remodeling. Licensed for veterinary use in some countries.
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Lisinopril
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Lysine analog of enalaprilat that directly inhibits angiotensin-converting enzyme (ACE), reducing angiotensin II and aldosterone production without requiring hepatic activation (unlike enalapril). Reduces afterload, preload, and cardiac remodeling.
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