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Drug interactions

Foscarnet + Ipratropium-salbutamol

Severity: Moderate

Foscarnet and Ipratropium-salbutamol: 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

Foscarnet can prolong the QT interval and commonly causes electrolyte disturbances including hypocalcemia, hypomagnesemia and hypokalemia. Salbutamol can lower potassium and cause tachycardia, adding to arrhythmia risk. The combination is more concerning with high or frequent salbutamol dosing.

What this interaction means in plain words

Foscarnet and Ipratropium-salbutamol 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.

Foscarnet belongs to Anti Virals; Ipratropium-salbutamol belongs to Respiratory.

Evidence level: Low

Why it happens

Additive QT prolongation risk and electrolyte disturbances, including hypokalemia from salbutamol.

What to do

Monitor potassium, magnesium and calcium, and consider ECG monitoring. Correct deficits and keep salbutamol use to the minimum needed.

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 Foscarnet with Ipratropium-salbutamol?

MediHelp rates the interaction as moderate. Foscarnet and Ipratropium-salbutamol 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. Foscarnet can prolong the QT interval and commonly causes electrolyte disturbances including hypocalcemia, hypomagnesemia and hypokalemia. Salbutamol can lower potassium and cause tachycardia, adding to arrhythmia risk. The combination is more concerning with high or frequent salbutamol dosing.

How serious is the interaction between Foscarnet and Ipratropium-salbutamol?

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 potassium, magnesium and calcium, and consider ECG monitoring. Correct deficits and keep salbutamol use to the minimum needed.

What other medicines interact with Ipratropium-salbutamol?

MediHelp also lists interactions of Ipratropium-salbutamol with, for example, Amisulpride, Arsenic trioxide, Carvedilol. The full list is on the Ipratropium-salbutamol page.

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