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Drug interactions

Ganciclovir + Probenecid

Severity: Moderate

Ganciclovir and Probenecid: 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

Probenecid reduces the renal clearance of ganciclovir, raising its exposure. Higher ganciclovir levels increase the risk of hematologic and other dose-related toxicity.

What this interaction means in plain words

Ganciclovir and Probenecid 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.

Ganciclovir belongs to Anti Virals; Probenecid belongs to Genitourinary.

Evidence level: Moderate

Why it happens

Probenecid inhibits active renal tubular secretion of ganciclovir.

What to do

Monitor complete blood counts and renal function closely. Reduce the ganciclovir dose if cytopenias develop.

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 Ganciclovir with Probenecid?

MediHelp rates the interaction as moderate. Ganciclovir and Probenecid 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. Probenecid reduces the renal clearance of ganciclovir, raising its exposure. Higher ganciclovir levels increase the risk of hematologic and other dose-related toxicity.

How serious is the interaction between Ganciclovir and Probenecid?

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 complete blood counts and renal function closely. Reduce the ganciclovir dose if cytopenias develop.

What other medicines interact with Probenecid?

MediHelp also lists interactions of Probenecid with, for example, Ketorolac intranasal, Ketorolac, Baricitinib. The full list is on the Probenecid page.

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

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