What the FDA labels say about taking them together
Clonazepam and nevirapine
Nevirapine's FDA label of July 15, 2026 names clonazepam in its drug interactions section; the clonazepam label PlainMeds reads does not name nevirapine. The nevirapine label: “Anticonvulsants: Carbamazepine, clonazepam, ethosuximide Plasma concentrations of nevirapine and the anticonvulsant may be decreased.”
Check it at the source: the clonazepam FDA label on DailyMed (effective December 1, 2025, H2-Pharma, LLC); the nevirapine FDA label on DailyMed (effective July 15, 2026, Mylan Pharmaceuticals Inc.).
What does the clonazepam label say about nevirapine?
Clonazepam's label (effective December 1, 2025) does 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 (Klonopin), NDA017533 (Cheplapharm), as published by H2-Pharma, LLC, effective December 1, 2025 (SPL set cfa0d79a-843c-4b88-95a1-e9511d649ca1), via openFDA; the full label on DailyMed
What does the nevirapine label say about clonazepam?
Nevirapine label, drug interactionsAnticonvulsants: Carbamazepine, clonazepam, ethosuximide Plasma concentrations of nevirapine and the anticonvulsant 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
| Clonazepam | Nevirapine | |
|---|---|---|
| Labeled for | Seizures and epilepsy, Anxiety | HIV |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $0.0244 per tablet 1 mg tablet | $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