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What the FDA labels say about taking them together

Dronedarone and nifedipine

Dronedarone's FDA label of May 29, 2025 names nifedipine in its drug interactions section; the nifedipine labels PlainMeds reads (2) do not name dronedarone. The dronedarone label: “Calcium Channel Blockers Dronedarone increased the exposure of calcium channel blockers.”

Check it at the source: the dronedarone FDA label on DailyMed (effective May 29, 2025, Sanofi-Aventis U.S. LLC); the nifedipine FDA label on DailyMed (effective December 24, 2024, Aurobindo Pharma Limited).

What does the dronedarone label say about nifedipine?

Dronedarone label, drug interactions

Calcium Channel Blockers Dronedarone increased the exposure of calcium channel blockers (verapamil, diltiazem or nifedipine).

Source: FDA drug label (Multaq), Sanofi-Aventis U.S. LLC, effective May 29, 2025 (SPL set 7fa41601-7fb5-4155-8e50-2ae903f0d2d6), via openFDA; the full label on DailyMed

What does the nifedipine label say about dronedarone?

Nifedipine's label (effective December 24, 2024) and its 1 other brand-application label do not name dronedarone in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (Nifedipine), Aurobindo Pharma Limited, effective December 24, 2024 (SPL set eb70b7ff-f9f0-41d0-901a-f4c04ae9ed46), 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

0Dronedarone generic labelers
32Nifedipine generic labelers
DronedaroneNifedipine
Labeled forn/aHigh blood pressure, Angina
Boxed warningYesNo
Pharmacy cost (NADAC)$13.19 per tablet 400 mg tablet$0.130 per tablet 30 mg tablet
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)

What next?