Drug interactions
Metformin + Nifedipine
Severity: Minor
Metformin and Nifedipine: 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
Calcium channel blockers such as nifedipine can slightly impair glucose tolerance in some patients, which may reduce glycemic control. Nifedipine may also increase metformin absorption modestly. The effect is usually small.
What this interaction means in plain words
Metformin and Nifedipine 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; Nifedipine belongs to Cardiovascular.
Why it happens
Nifedipine may reduce insulin secretion and increase metformin absorption; the effects are small and inconsistent.
What to do
Monitor blood glucose when nifedipine is started or stopped and adjust diabetes therapy as needed.
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 Nifedipine
Other interactions of Metformin
Frequently asked questions
Can I take Metformin with Nifedipine?
MediHelp rates the interaction as minor. Metformin and Nifedipine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Calcium channel blockers such as nifedipine can slightly impair glucose tolerance in some patients, which may reduce glycemic control. Nifedipine may also increase metformin absorption modestly. The effect is usually small.
How serious is the interaction between Metformin and Nifedipine?
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 blood glucose when nifedipine is started or stopped and adjust diabetes therapy as needed.
What other medicines interact with Nifedipine?
MediHelp also lists interactions of Nifedipine with, for example, Amifostine, Amlodipine-benazepril, Apalutamide. The full list is on the Nifedipine page.
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