What the FDA labels say about taking them together
Fentanyl and nevirapine
Nevirapine's FDA label of July 15, 2026 names fentanyl in its drug interactions section; the fentanyl labels PlainMeds reads (2) do not name nevirapine. The nevirapine label: “Opiate Agonists: Fentanyl Plasma concentrations may be decreased.”
Check it at the source: the fentanyl FDA label on DailyMed (effective March 6, 2026, Hikma Pharmaceuticals USA Inc.); the nevirapine FDA label on DailyMed (effective July 15, 2026, Mylan Pharmaceuticals Inc.).
What does the fentanyl label say about nevirapine?
Fentanyl's label (effective March 6, 2026) and its 1 other brand-application label do not name nevirapine in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Fentanyl Citrate), Hikma Pharmaceuticals USA Inc., effective March 6, 2026 (SPL set ce5db1c2-feb1-4ad2-847a-d02e865bd47e), via openFDA; the full label on DailyMed
What does the nevirapine label say about fentanyl?
Nevirapine label, drug interactionsOpiate Agonists: Fentanyl Plasma concentrations may be decreased.
Source: FDA drug label (Nevirapine), Mylan Pharmaceuticals Inc., effective July 15, 2026 (SPL set c6e93829-7024-48f6-8023-da6ff27dfc0a), 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
| Fentanyl | Nevirapine | |
|---|---|---|
| Labeled for | Pain | HIV |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $1.79 per mL 100 mcg/2 mL vial | $0.147 per tablet 200 mg tablet |
| Shortage now | In shortage | No current entry |
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