What the FDA labels say about taking them together
Ethinyl estradiol/segesterone and voriconazole
Ethinyl estradiol/segesterone's FDA label of April 23, 2025 names voriconazole in its drug interactions section; the voriconazole labels PlainMeds reads (3) do not name ethinyl estradiol/segesterone. The ethinyl estradiol/segesterone label: “CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase systemic exposure of the estrogen and/or progestin component of ANNOVERA.”
Check it at the source: the ethinyl estradiol/segesterone FDA label on DailyMed (effective April 23, 2025); the voriconazole FDA label on DailyMed (effective February 26, 2026, Roerig).
What does the ethinyl estradiol/segesterone label say about voriconazole?
Ethinyl estradiol/segesterone label, drug interactionsCYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase systemic exposure of the estrogen and/or progestin component of ANNOVERA.
Source: FDA drug label (Annovera), Mayne Pharma, effective April 23, 2025 (SPL set eb18194f-2021-41fa-8bdf-31e0c0eb646b), via openFDA; the full label on DailyMed
What does the voriconazole label say about ethinyl estradiol/segesterone?
Voriconazole's label (effective February 26, 2026) and its 2 other brand-application labels do not name ethinyl estradiol/segesterone in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (VFEND), NDA021630 (Pf Prism Cv), as published by Roerig, effective February 26, 2026 (SPL set ce3ef5cf-3087-4d92-9d94-9eb8287228db), 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
| Ethinyl estradiol/segesterone | Voriconazole | |
|---|---|---|
| Labeled for | Birth control | Fungal infections |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | $2,315.29 per ring Annovera vaginal ring | $1.88 per tablet 200 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