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Drug interactions

Irbesartan + Nitroglycerin rectal

Severity: Moderate

Irbesartan and Nitroglycerin rectal: moderate 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

Nitroglycerin is a vasodilator and its effect can add to the blood-pressure-lowering action of irbesartan. This may cause symptomatic hypotension, dizziness or syncope.

What this interaction means in plain words

Irbesartan and Nitroglycerin rectal can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Evidence level: Moderate

Why it happens

Additive vasodilation and hypotensive effects via different pathways.

What to do

Monitor blood pressure and advise patients to rise slowly. Reduce doses if symptomatic hypotension develops.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Irbesartan with Nitroglycerin rectal?

MediHelp rates the interaction as moderate. Irbesartan and Nitroglycerin rectal can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Nitroglycerin is a vasodilator and its effect can add to the blood-pressure-lowering action of irbesartan. This may cause symptomatic hypotension, dizziness or syncope.

How serious is the interaction between Irbesartan and Nitroglycerin rectal?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and advise patients to rise slowly. Reduce doses if symptomatic hypotension develops.

What other medicines interact with Irbesartan?

MediHelp also lists interactions of Irbesartan with, for example, Aliskiren, Sparsentan, Amifostine. The full list is on the Irbesartan page.

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