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Drug interactions

Isosorbide dinitrate + Stiripentol

Severity: Minor

Isosorbide dinitrate and Stiripentol: 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

Stiripentol can inhibit and induce CYP3A4, but isosorbide dinitrate is metabolised mainly by non-CYP denitration. A meaningful change in nitrate effect is therefore unlikely.

What this interaction means in plain words

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

Isosorbide dinitrate belongs to Cardiovascular; Stiripentol belongs to Central Nervous System.

Evidence level: Low

Why it happens

Stiripentol modulates CYP3A4, which is a minor pathway for isosorbide dinitrate.

What to do

No dose change is needed. Review anginal control and blood pressure if the response changes.

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 Isosorbide dinitrate with Stiripentol?

MediHelp rates the interaction as minor. Isosorbide dinitrate and Stiripentol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Stiripentol can inhibit and induce CYP3A4, but isosorbide dinitrate is metabolised mainly by non-CYP denitration. A meaningful change in nitrate effect is therefore unlikely.

How serious is the interaction between Isosorbide dinitrate and Stiripentol?

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 dose change is needed. Review anginal control and blood pressure if the response changes.

What other medicines interact with Isosorbide dinitrate?

MediHelp also lists interactions of Isosorbide dinitrate with, for example, Avanafil, Riociguat, Sildenafil. The full list is on the Isosorbide dinitrate page.

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