Drug interactions
Metformin + Ramipril
Severity: Minor
Metformin and Ramipril: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
ACE inhibitors may enhance glucose lowering, though metformin alone rarely causes hypoglycemia. ACE inhibitor-related renal function decline can reduce metformin clearance and, rarely, contribute to lactic acidosis.
What this interaction means in plain words
Metformin and Ramipril have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Metformin belongs to Endocrine; Ramipril belongs to Cardiovascular.
Why it happens
Possible modest additive glucose lowering and indirect accumulation of metformin if ACE inhibitor-related renal impairment occurs.
What to do
Monitor renal function and blood glucose after starting or adjusting ramipril, and reduce or stop metformin if eGFR falls to levels where it is not recommended.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Ramipril
- Aliskiren + Ramipril Contraindicated
- Protein a column + Ramipril Contraindicated
- Ramipril + Sacubitril / valsartan Contraindicated
- Ramipril + Sacubitril-valsartan Contraindicated
- Amifostine + Ramipril Major
- Amiloride + Ramipril Major
Other interactions of Metformin
Frequently asked questions
Can I take Metformin with Ramipril?
MediHelp rates the interaction as minor. Metformin and Ramipril have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. ACE inhibitors may enhance glucose lowering, though metformin alone rarely causes hypoglycemia. ACE inhibitor-related renal function decline can reduce metformin clearance and, rarely, contribute to lactic acidosis.
How serious is the interaction between Metformin and Ramipril?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor renal function and blood glucose after starting or adjusting ramipril, and reduce or stop metformin if eGFR falls to levels where it is not recommended.
What other medicines interact with Ramipril?
MediHelp also lists interactions of Ramipril with, for example, Aliskiren, Protein a column, Sacubitril / valsartan. The full list is on the Ramipril page.
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