What the FDA labels say about taking them together
Ethinyl estradiol/ferrous fumarate/levonorgestrel and voriconazole
Ethinyl estradiol/ferrous fumarate/levonorgestrel's FDA label of October 18, 2024 names voriconazole in its drug interactions section; the voriconazole labels PlainMeds reads (3) do not name ethinyl estradiol/ferrous fumarate/levonorgestrel. The ethinyl estradiol/ferrous fumarate/levonorgestrel label: “CYP3A4 inhibitors, such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations.”
Check it at the source: the ethinyl estradiol/ferrous fumarate/levonorgestrel FDA label on DailyMed (effective October 18, 2024, Xiromed, LLC); the voriconazole FDA label on DailyMed (effective February 26, 2026, Roerig).
What does the ethinyl estradiol/ferrous fumarate/levonorgestrel label say about voriconazole?
Ethinyl estradiol/ferrous fumarate/levonorgestrel label, drug interactionsCYP3A4 inhibitors, such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations.
Source: FDA drug label (Joyeaux), Xiromed, LLC, effective October 18, 2024 (SPL set 655b2c93-cfae-d44f-c128-c816bbd88e45), via openFDA; the full label on DailyMed
What does the voriconazole label say about ethinyl estradiol/ferrous fumarate/levonorgestrel?
Voriconazole's label (effective February 26, 2026) and its 2 other brand-application labels do not name ethinyl estradiol/ferrous fumarate/levonorgestrel 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/ferrous fumarate/levonorgestrel | Voriconazole | |
|---|---|---|
| Labeled for | Birth control | Fungal infections |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | $3.45 per tablet 28 tablet | $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