What the FDA labels say about taking them together
Paclitaxel and verapamil
Verapamil's FDA label (Verapamil Hydrochloride) of November 27, 2024 names paclitaxel in its drug interactions section; the paclitaxel labels PlainMeds reads (4) do not name verapamil. The verapamil label: “Concomitant administration of R verapamil can decrease the clearance of paclitaxel.”
Check it at the source: the paclitaxel FDA label on DailyMed (effective January 21, 2026, Natco Pharma USA LLC); the verapamil FDA label on DailyMed (effective April 6, 2026, Zydus Pharmaceuticals (USA) Inc.).
What does the paclitaxel label say about verapamil?
Paclitaxel's label (effective January 21, 2026) and its 3 other brand-application labels do not name verapamil in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Paclitaxel), Natco Pharma USA LLC, effective January 21, 2026 (SPL set a1eb16b4-285b-4e81-9c4e-1244d4a52af8), via openFDA; the full label on DailyMed
What does the verapamil label say about paclitaxel?
Verapamil Hydrochloride label (Wilshire Pharmaceuticals, Inc., November 27, 2024), drug interactionsConcomitant administration of R verapamil can decrease the clearance of paclitaxel.
Source: FDA drug label (Verapamil Hydrochloride, NDA020943), Wilshire Pharmaceuticals, Inc., effective November 27, 2024 (SPL set 5f665d08-e1e4-422a-88c2-d8834abf9e1a), via openFDA
Source: FDA drug label (Verapamil hydrochloride), Zydus Pharmaceuticals (USA) Inc., effective April 6, 2026 (SPL set e19ab8d8-dae5-489d-9805-7e7407bea06d), 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
| Paclitaxel | Verapamil | |
|---|---|---|
| Labeled for | Breast cancer, Lung cancer | High blood pressure, Atrial fibrillation, Angina |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | n/a | $0.191 per tablet 180 mg tablet |
| Shortage now | No current entry | A presentation being discontinued |
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