Drug interactions
Metformin + Nisoldipine
Severity: Minor
Metformin and Nisoldipine: 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
Dihydropyridine calcium channel blockers such as nisoldipine can occasionally impair glucose tolerance, which may slightly reduce the glucose-lowering effect of metformin. The effect is inconsistent and usually small.
What this interaction means in plain words
Metformin and Nisoldipine 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; Nisoldipine belongs to Cardiovascular.
Why it happens
Calcium channel blockade may reduce insulin secretion and peripheral insulin sensitivity, producing mild pharmacodynamic antagonism.
What to do
Check blood glucose and HbA1c when nisoldipine is started or stopped and adjust metformin only if control worsens.
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 Metformin
Other interactions of Nisoldipine
- Itraconazole + Nisoldipine Contraindicated
- Ketoconazole + Nisoldipine Contraindicated
- Apalutamide + Nisoldipine Major
- Carbamazepine + Nisoldipine Major
- Chloramphenicol + Nisoldipine Major
- Clarithromycin + Nisoldipine Major
Frequently asked questions
Can I take Metformin with Nisoldipine?
MediHelp rates the interaction as minor. Metformin and Nisoldipine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Dihydropyridine calcium channel blockers such as nisoldipine can occasionally impair glucose tolerance, which may slightly reduce the glucose-lowering effect of metformin. The effect is inconsistent and usually small.
How serious is the interaction between Metformin and Nisoldipine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check blood glucose and HbA1c when nisoldipine is started or stopped and adjust metformin only if control worsens.
What other medicines interact with Metformin?
MediHelp also lists interactions of Metformin with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Metformin page.
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