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What the FDA labels say about taking them together

Cinacalcet and ketoconazole

Cinacalcet's FDA label of April 2, 2026 names ketoconazole in its drug interactions section; the ketoconazole label PlainMeds reads does not name cinacalcet. The cinacalcet label: “Dose adjustment of Sensipar may be required if a patient initiates or discontinues therapy with a strong CYP3A4 inhibitor.”

Check it at the source: the cinacalcet FDA label on DailyMed (effective April 2, 2026, Aurobindo Pharma Limited); the ketoconazole FDA label on DailyMed (effective January 28, 2026, E. Fougera & Co. a division of Fougera Pharmaceuticals, LLC).

What does the cinacalcet label say about ketoconazole?

Cinacalcet label, drug interactions

Dose adjustment of cinacalcet may be required if a patient initiates or discontinues therapy with a strong CYP3A4 inhibitor (e.g., ketoconazole, itraconazole).

Source: FDA drug label (Sensipar, NDA021688), Amgen Inc, effective December 7, 2025 (SPL set 45028573-13c4-4c8b-ae62-6c75bba97c81), via openFDA

Source: FDA drug label (Cinacalcet), Aurobindo Pharma Limited, effective April 2, 2026 (SPL set 200390f2-7dad-4ecc-a086-c29e18525c01), via openFDA; the full label on DailyMed

What does the ketoconazole label say about cinacalcet?

Ketoconazole's label (effective January 28, 2026) does not name cinacalcet in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (ketoconazole), E. Fougera & Co. a division of Fougera Pharmaceuticals, LLC, effective January 28, 2026 (SPL set cad7c647-34a9-4e4e-83b3-8d78e58f588f), 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

16Cinacalcet generic labelers
30Ketoconazole generic labelers
CinacalcetKetoconazole
Labeled forn/aFungal infections
Boxed warningNoNo
Pharmacy cost (NADAC)$0.411 per tablet 30 mg tablet$0.249 per gram 2% cream
Shortage nowNo current entryNo 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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