What the FDA labels say about taking them together
Drospirenone/ethinyl estradiol and itraconazole
Drospirenone/ethinyl estradiol's FDA label of May 29, 2025 names itraconazole in its drug interactions section; the itraconazole labels PlainMeds reads (2) do not name drospirenone/ethinyl estradiol. The drospirenone/ethinyl estradiol label: “Concomitant administration of moderate or strong CYP3A4 inhibitors such as azole antifungals, verapamil, macrolides, diltiazem, and grapefruit juice can increase the plasma concentrations of the estrogen or the …”
Check it at the source: the drospirenone/ethinyl estradiol FDA label on DailyMed (effective May 29, 2025, Bayer HealthCare Pharmaceuticals Inc.); the itraconazole FDA label on DailyMed (effective July 13, 2026, Janssen Pharmaceuticals, Inc.).
What does the drospirenone/ethinyl estradiol label say about itraconazole?
Drospirenone/ethinyl estradiol label, drug interactionsConcomitant administration of moderate or strong CYP3A4 inhibitors such as azole antifungals (e.g., ketoconazole, itraconazole, voriconazole, fluconazole), verapamil, macrolides (e.g., clarithromycin, erythromycin), diltiazem, and grapefruit juice can increase the plasma concentrations of the estrogen or the progestin or both.
Drospirenone/ethinyl estradiol label, warnings and precautionsStrong CYP3A4 inhibitors include azole antifungals (e.g. ketoconazole, itraconazole, voriconazole), HIV/HCV protease inhibitors (e.g., indinavir, boceprevir), and clarithromycin [see Clinical Pharmacology ( 12.3 )].
Source: FDA drug label (Yaz), Bayer HealthCare Pharmaceuticals Inc., effective May 29, 2025 (SPL set 065f33e4-b587-4e66-b896-ca9ab7b7c876), via openFDA; the full label on DailyMed
What does the itraconazole label say about drospirenone/ethinyl estradiol?
Itraconazole's label (effective July 13, 2026) and its 1 other brand-application label do not name drospirenone/ethinyl estradiol in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (SPORANOX), Janssen Pharmaceuticals, Inc., effective July 13, 2026 (SPL set a4d555fa-787c-40fb-bb7d-b0d4f7318fd0), 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
| Drospirenone/ethinyl estradiol | Itraconazole | |
|---|---|---|
| Labeled for | Acne, Birth control | Fungal infections |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $0.151 per tablet 3-0.03 mg tablet | $0.910 per capsule 100 mg capsule |
| 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