What the FDA labels say about taking them together
Ganciclovir and mycophenolate mofetil
Ganciclovir's FDA label of January 9, 2026 names mycophenolate mofetil in its drug interactions section, and mycophenolate mofetil's label names ganciclovir too. The ganciclovir label: “Based on increased risk, patients should be monitored for hematological and renal toxicity.”
Check it at the source: the ganciclovir FDA label on DailyMed (effective January 9, 2026, Fresenius Kabi USA, LLC); the mycophenolate mofetil FDA label on DailyMed (effective August 5, 2026, Genentech, Inc.).
What does the ganciclovir label say about mycophenolate mofetil?
Ganciclovir label, drug interactionsName of the Concomitant Drug: Mycophenolate mofetil (MMF); Change in the Concentration of Ganciclovir or Concomitant Drug: ↔ Ganciclovir (in patients with normal renal function) ↔ MMF (in patients with normal renal function); Clinical Comment: Based on increased risk, patients should be monitored for hematological and renal toxicity.
Source: FDA drug label (Ganciclovir), Fresenius Kabi USA, LLC, effective January 9, 2026 (SPL set 35addab5-09db-4f8a-9c69-6fbce33ecc37), via openFDA; the full label on DailyMed
What does the mycophenolate mofetil label say about ganciclovir?
Mycophenolate mofetil label, drug interactionsExamples; Acyclovir, ganciclovir, probenecid, valacyclovir, valganciclovir
Source: FDA drug label (CellCept), NDA050722 (Roche Palo), as published by Genentech, Inc., effective August 5, 2026 (SPL set 37241e87-4af4-4dc3-a1aa-ea6f20d8dc40), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Ganciclovir | Mycophenolate mofetil | |
|---|---|---|
| Labeled for | n/a | Organ transplant rejection |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $91.24 per gram 0.15% ophthalmic gel | $0.138 per capsule 250 mg capsule |
| Shortage now | No current entry | No current entry |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once