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Drug interactions

Norgestrel + Verapamil

Severity: Minor

Norgestrel and Verapamil: 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

Verapamil may raise norgestrel concentrations by inhibiting its metabolism. This could increase progestogenic adverse effects, though contraceptive efficacy is not expected to be reduced.

What this interaction means in plain words

Norgestrel and Verapamil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Norgestrel belongs to Endocrine; Verapamil belongs to Cardiovascular.

Evidence level: Low

Why it happens

Verapamil inhibits CYP3A4, reducing the metabolism of norgestrel.

What to do

No routine change is needed. Watch for progestogen-related side effects such as breakthrough bleeding, headache or mood change.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Norgestrel with Verapamil?

MediHelp rates the interaction as minor. Norgestrel and Verapamil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Verapamil may raise norgestrel concentrations by inhibiting its metabolism. This could increase progestogenic adverse effects, though contraceptive efficacy is not expected to be reduced.

How serious is the interaction between Norgestrel and Verapamil?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change is needed. Watch for progestogen-related side effects such as breakthrough bleeding, headache or mood change.

What other medicines interact with Verapamil?

MediHelp also lists interactions of Verapamil with, for example, Dofetilide, Flibanserin, Lomitapide. The full list is on the Verapamil page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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