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What the FDA labels say about taking them together

Carbamazepine and cyclosporine

Carbamazepine's FDA label of August 20, 2026 names cyclosporine in its drug interactions section, and cyclosporine's label names carbamazepine too. The carbamazepine label: “… buprenorphone, bupropion, citalopram, clonazepam, clozapine, corticosteroids, cyclosporine, dicumarol, dihydropyridine calcium channel blockers (e.g., felodipine), doxycycline, eslicarbazepine, ethosuximide, everolimus …”

Check it at the source: the carbamazepine FDA label on DailyMed (effective August 20, 2026, Novartis Pharmaceuticals Corporation); the cyclosporine FDA label on DailyMed (effective August 10, 2026, Novartis Pharmaceuticals Corporation).

What does the carbamazepine label say about cyclosporine?

Carbamazepine label, drug interactions

In addition, Tegretol causes, or would be expected to cause, decreased levels of the following drugs, for which monitoring of concentrations or dosage adjustment may be necessary: acetaminophen, albendazole, alprazolam, aprepitant, buprenorphone, bupropion, citalopram, clonazepam, clozapine, corticosteroids (e.g., prednisolone, dexamethasone), cyclosporine, dicumarol, dihydropyridine calcium channel blockers (e.g., felodipine), doxycycline, eslicarbazepine, ethosuximide, everolimus, haloperidol, imatinib, itraconazole, lamotrigine, levothyroxine, methadone, methsuximide, mianserin, midazolam, olanzapine, oral and other hormonal contraceptives, oxcarbazepine, paliperidone, phensuximide …

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 cyclosporine label say about carbamazepine?

Cyclosporine label, drug interactions

nafcillin; carbamazepine; bosentan; St. John’s Wort

Source: FDA drug label (Neoral), Novartis Pharmaceuticals Corporation, effective August 10, 2026 (SPL set 94461af3-11f1-4670-95d4-2965b9538ae3), 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

42Carbamazepine generic labelers
14Cyclosporine generic labelers
CarbamazepineCyclosporine
Labeled forBipolar disorder, Seizures and epilepsyOrgan transplant rejection, Rheumatoid arthritis
Boxed warningYesYes
Pharmacy cost (NADAC)$0.119 per tablet 200 mg tablet$1.04 per unit 0.05% eye emulsion
Shortage nowA presentation being discontinuedNo current entry

Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)

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