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Drug interactions

Asenapine transdermal + Indapamide

Severity: Moderate

Asenapine transdermal and Indapamide: 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

Asenapine has a modest QT-prolonging effect, and indapamide can cause hypokalemia and hypomagnesemia, which increase the risk of torsades de pointes. The risk is greatest in patients with additional cardiac risk factors.

What this interaction means in plain words

Asenapine transdermal and Indapamide 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: Low

Why it happens

Additive QT prolongation with diuretic-induced electrolyte disturbance.

What to do

Check potassium and magnesium at baseline and periodically, and correct deficits. Obtain an ECG in patients with other QT risk factors.

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 Asenapine transdermal with Indapamide?

MediHelp rates the interaction as moderate. Asenapine transdermal and Indapamide 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. Asenapine has a modest QT-prolonging effect, and indapamide can cause hypokalemia and hypomagnesemia, which increase the risk of torsades de pointes. The risk is greatest in patients with additional cardiac risk factors.

How serious is the interaction between Asenapine transdermal and Indapamide?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check potassium and magnesium at baseline and periodically, and correct deficits. Obtain an ECG in patients with other QT risk factors.

What other medicines interact with Indapamide?

MediHelp also lists interactions of Indapamide with, for example, Adagrasib, Amifostine, Amiodarone. The full list is on the Indapamide page.

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