What the FDA labels say about taking them together
Dabigatran and quinidine
Dabigatran's FDA label of June 25, 2025 names quinidine in its drug interactions section; the quinidine label PlainMeds reads does not name dabigatran. The dabigatran label: “The use of the P-gp inhibitors verapamil, amiodarone, quinidine, clarithromycin, and ticagrelor does not require a dosage adjustment of PRADAXA.”
Check it at the source: the dabigatran FDA label on DailyMed (effective June 25, 2025, Boehringer Ingelheim Pharmaceuticals Inc.); the quinidine FDA label on DailyMed (effective February 1, 2018, Sun Pharmaceutical Industries, Inc.).
What does the dabigatran label say about quinidine?
Dabigatran label, drug interactionsThe use of the P-gp inhibitors verapamil, amiodarone, quinidine, clarithromycin, and ticagrelor does not require a dosage adjustment of PRADAXA.
Source: FDA drug label (Pradaxa), Boehringer Ingelheim Pharmaceuticals Inc., effective June 25, 2025 (SPL set ba74e3cd-b06f-4145-b284-5fd6b84ff3c9), via openFDA; the full label on DailyMed
What does the quinidine label say about dabigatran?
Quinidine's label (effective February 1, 2018) does not name dabigatran in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Quinidine Gluconate), Sun Pharmaceutical Industries, Inc., effective February 1, 2018 (SPL set 5023f053-fcc4-4c2c-aa59-9ec198ad185e), 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
| Dabigatran | Quinidine | |
|---|---|---|
| Labeled for | Atrial fibrillation, Blood clots (DVT and PE), Stroke prevention | Atrial fibrillation |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $0.795 per capsule 150 mg capsule | $4.92 per tablet 324 mg tablet |
| 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