Drug interactions
Didanosine + Ganciclovir
Severity: Major
Didanosine and Ganciclovir: major 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
Ganciclovir increases didanosine exposure, which can heighten didanosine toxicities such as pancreatitis, peripheral neuropathy and lactic acidosis. Both drugs can also cause bone marrow or other toxicities, complicating the picture.
What this interaction means in plain words
Didanosine and Ganciclovir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Didanosine belongs to Anti Virals; Ganciclovir belongs to Anti Virals.
Why it happens
Ganciclovir reduces didanosine clearance, probably via competition for renal elimination, with overlapping toxicities.
What to do
Avoid the combination if possible; if needed, consider reducing the didanosine dose and monitor for pancreatitis, neuropathy, lactate and blood counts.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Didanosine and Ganciclovir, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Ganciclovir
Other interactions of Didanosine
- Didanosine + Elvitegravir / cobicistat / emtricitabine / tenofovir df Contraindicated
- Didanosine + Hydroxycarbamide Contraindicated
- Didanosine + Hydroxyurea Contraindicated
- Didanosine + Ribavirin Contraindicated
- Didanosine + Stavudine Contraindicated
- Allopurinol + Didanosine Major
Frequently asked questions
Can I take Didanosine with Ganciclovir?
MediHelp rates the interaction as major. Didanosine and Ganciclovir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Ganciclovir increases didanosine exposure, which can heighten didanosine toxicities such as pancreatitis, peripheral neuropathy and lactic acidosis. Both drugs can also cause bone marrow or other toxicities, complicating the picture.
How serious is the interaction between Didanosine and Ganciclovir?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination if possible; if needed, consider reducing the didanosine dose and monitor for pancreatitis, neuropathy, lactate and blood counts.
What other medicines interact with Ganciclovir?
MediHelp also lists interactions of Ganciclovir with, for example, Bacitracin, Cilastatin-imipenem, Imipenem / cilastatin. The full list is on the Ganciclovir page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
