What the FDA labels say about taking them together
Dutasteride and itraconazole
Itraconazole's FDA label of July 13, 2026 names dutasteride in its drug interactions section; the dutasteride label PlainMeds reads does not name itraconazole. The itraconazole label: “Dutasteride Oxybutynin Sildenafil (for erectile dysfunction) Tadalafil Tolterodine Monitor for adverse reactions.”
Check it at the source: the dutasteride FDA label on DailyMed (effective September 11, 2025, Aurobindo Pharma Limited); the itraconazole FDA label on DailyMed (effective July 13, 2026, Janssen Pharmaceuticals, Inc.).
What does the dutasteride label say about itraconazole?
Dutasteride's label (effective September 11, 2025) does not name itraconazole in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Dutasteride), Aurobindo Pharma Limited, effective September 11, 2025 (SPL set b32611f3-50ec-45bb-a671-ea10cec7829d), via openFDA; the full label on DailyMed
What does the itraconazole label say about dutasteride?
Itraconazole label, drug interactionsDutasteride Oxybutynin Sildenafil (for erectile dysfunction) Tadalafil (for erectile dysfunction and benign prostatic hyperplasia) Tolterodine Monitor for adverse reactions.
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
| Dutasteride | Itraconazole | |
|---|---|---|
| Labeled for | Enlarged prostate (BPH) | Fungal infections |
| Boxed warning | No | Yes |
| Pharmacy cost (NADAC) | $0.157 per capsule 0.5 mg capsule | $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