What the FDA labels say about taking them together
Haloperidol and lorazepam
Lorazepam's FDA label (Lorazepam) of April 10, 2024 names haloperidol in its drug interactions section; the haloperidol labels PlainMeds reads (2) do not name lorazepam.
Check it at the source: the haloperidol FDA label on DailyMed (effective April 23, 2026, PD-Rx Pharmaceuticals, Inc.); the lorazepam FDA label on DailyMed (effective July 9, 2025, Bausch Health US LLC).
What does the haloperidol label say about lorazepam?
Haloperidol's label (effective April 23, 2026) and its 1 other brand-application label do not name lorazepam in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Haloperidol), PD-Rx Pharmaceuticals, Inc., effective April 23, 2026 (SPL set 533b0b4c-cbd6-4ec0-a333-8b04b5b43a1d), via openFDA; the full label on DailyMed
What does the lorazepam label say about haloperidol?
Lorazepam label (Hikma Pharmaceuticals USA Inc., April 10, 2024), drug interactionsApnea, coma, bradycardia, arrhythmia, heart arrest, and death have been reported with the concomitant use of haloperidol and lorazepam.
Source: FDA drug label (Lorazepam, NDA018140), Hikma Pharmaceuticals USA Inc., effective April 10, 2024 (SPL set 4084fa74-9fd2-45ef-9d56-27bfa31d4e46), via openFDA
Source: FDA drug label (Ativan), Bausch Health US LLC, effective July 9, 2025 (SPL set 89057c93-8155-4040-acec-64e877bd2b4c), 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
| Haloperidol | Lorazepam | |
|---|---|---|
| Labeled for | Schizophrenia | Anxiety |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $15.60 per mL 100 mg/mL vial | $0.0344 per tablet 0.5 mg tablet |
| Shortage now | A presentation being discontinued | In shortage |
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