Halazepam

22 interactions 2 explained in plain English
Dr. Brian Staiger, PharmD, BCPS
Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Jul 4, 2026 · Editorial policy · Data sources

Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →

Most serious with: Fentanyl Transdermal Patch Buprenorphine Esketamine Nasal Spray Nalbuphine Injection Morphine Injection Hydromorphone Rectal
21 Major 1 Moderate
All (22) Major (21) Moderate (1)

Major

Halazepam Acetaminophen And Codeine Capital® & Codeine Explained An increased risk of hypotension, respiratory depression, profound sedation, coma, and death Details Halazepam Buprenorphine Belbuca Explained An increased risk of CNS depression and respiratory depression Details Halazepam Aripiprazole Injection Abilify An increased risk of sedation and orthostatic hypotension Details Halazepam Butorphanol Injection Butorphic Increased risk of respiratory and CNS depression Details Halazepam Butorphanol Nasal Spray Stadol® NS Increased risk of respiratory and CNS depression Details Halazepam Cetirizine Injection Aller-Tec Increased risk of CNS depression Details Halazepam Cetirizine Ophthalmic Zerviate Increased risk of CNS depression Details Halazepam Diazepam Nasal Spray Valtoco Increased risk of CNS depression Details Halazepam Diazepam Rectal Diastat Increased risk of CNS depression Details Halazepam Esketamine Nasal Spray Spravato Increased risk of sedation Details Halazepam Fentanyl Transdermal Patch Duragesic® Increased risk of profound sedation, respiratory depression, hypotension, coma and death Details Halazepam Hydromorphone Injection Dilaudid Increased risk of respiratory and CNS depression Details Halazepam Hydromorphone Rectal available generically Increased risk of respiratory and CNS depression Details Halazepam Lacosamide Injection Motpoly An increased risk of CNS depression Details Halazepam Levodopa Oral Inhalation Inbrija An increased risk of CNS depression Details Halazepam Metoclopramide Injection Gimoti Increased risk of CNS depression Details Halazepam Metoclopramide Nasal Spray Gimoti Increased risk of CNS depression Details Halazepam Midazolam Nasal Spray Nayzilam Increased risk of hypoventilation, airway obstruction, desaturation, or apnea Details Halazepam Midazolam Injection Nayzilam Increased risk of hypoventilation, airway obstruction, desaturation, or apnea Details Halazepam Morphine Injection Astramorph® PF Increased risk of profound sedation, respiratory depression, hypotension, coma and death Details Halazepam Nalbuphine Injection Nubain® Increased risk of respiratory and CNS depression Details

Moderate

Halazepam Clonidine Transdermal Patch Catapres An increased risk of sedation and somnolence Details

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