What the FDA labels say about taking them together
Carbamazepine and maribavir
Maribavir's FDA label of January 27, 2026 names carbamazepine in its drug interactions section; the carbamazepine labels PlainMeds reads (3) do not name maribavir. The maribavir label: “A dose adjustment of LIVTENCITY to 800 mg twice daily is recommended when coadministered with carbamazepine.”
Check it at the source: the carbamazepine FDA label on DailyMed (effective August 20, 2026, Novartis Pharmaceuticals Corporation); the maribavir FDA label on DailyMed (effective January 27, 2026, Takeda Pharmaceuticals America, Inc.).
What does the carbamazepine label say about maribavir?
Carbamazepine's label (effective August 20, 2026) and its 2 other brand-application labels do not name maribavir in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Tegretol), Novartis Pharmaceuticals Corporation, effective August 20, 2026 (SPL set 8d409411-aa9f-4f3a-a52c-fbcb0c3ec053), via openFDA; the full label on DailyMed
What does the maribavir label say about carbamazepine?
Maribavir label, drug interactionsConcomitant Drug Class/Drug Name: Carbamazepine; Effect on Concentration: ↓ Maribavir; Clinical Comments: A dose adjustment of LIVTENCITY to 800 mg twice daily is recommended when coadministered with carbamazepine.
Maribavir label, warnings and precautionsThus, coadministration of LIVTENCITY with these drugs is not recommended, except with a dose adjustment when coadministered with selected anticonvulsants (carbamazepine and phenytoin).
Source: FDA drug label (Livtencity), Takeda Pharmaceuticals America, Inc., effective January 27, 2026 (SPL set c94fc2c5-e840-4f18-b7d8-d5eacb26d3a0), 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
| Carbamazepine | Maribavir | |
|---|---|---|
| Labeled for | Bipolar disorder, Seizures and epilepsy | n/a |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | $0.119 per tablet 200 mg tablet | n/a |
| Shortage now | A presentation being discontinued | 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