What the FDA labels say about taking them together
Dutasteride and ritonavir
Dutasteride's FDA label of September 11, 2025 names ritonavir in its drug interactions section; the ritonavir label PlainMeds reads does not name dutasteride.
Check it at the source: the dutasteride FDA label on DailyMed (effective September 11, 2025, Aurobindo Pharma Limited); the ritonavir FDA label on DailyMed (effective July 23, 2026, AbbVie Inc.).
What does the dutasteride label say about ritonavir?
Dutasteride label, drug interactionsDRUG INTERACTIONS Use with caution in patients taking potent, chronic cytochrome P450 (CYP)3A4 enzyme inhibitors (e.g., ritonavir).
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 ritonavir label say about dutasteride?
Ritonavir's label (effective July 23, 2026) does not name dutasteride in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Norvir), AbbVie Inc., effective July 23, 2026 (SPL set 2849298e-de6e-47bb-8194-56e075b33fc3), 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 | Ritonavir | |
|---|---|---|
| Labeled for | Enlarged prostate (BPH) | HIV |
| Boxed warning | No | Yes |
| Pharmacy cost (NADAC) | $0.157 per capsule 0.5 mg capsule | $0.607 per tablet 100 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