Thiopropazate

21 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: Nalbuphine Injection Lacosamide Injection Butorphanol Injection Butorphanol Nasal Spray Cetirizine Injection Cetirizine Ophthalmic
20 Major 1 Moderate
All (21) Major (20) Moderate (1)

Major

Thiopropazate Acetaminophen And Codeine Capital® & Codeine Explained An increased risk of respiratory and CNS depression Details Thiopropazate Buprenorphine Belbuca Explained An increased risk of respiratory depression and CNS depression Details Thiopropazate Butorphanol Injection Butorphic Increased risk of respiratory and CNS depression Details Thiopropazate Butorphanol Nasal Spray Stadol® NS Increased risk of respiratory and CNS depression Details Thiopropazate Cetirizine Injection Aller-Tec Increased risk of CNS depression Details Thiopropazate Cetirizine Ophthalmic Zerviate Increased risk of CNS depression Details Thiopropazate Diazepam Nasal Spray Valtoco Increased risk of CNS depression Details Thiopropazate Diazepam Rectal Diastat Increased risk of CNS depression Details Thiopropazate Esketamine Nasal Spray Spravato Increased risk of sedation Details Thiopropazate Fentanyl Transdermal Patch Duragesic® Increased risk of profound sedation, respiratory depression, hypotension, coma and death Details Thiopropazate Hydromorphone Injection Dilaudid Increased risk of respiratory and CNS depression Details Thiopropazate Hydromorphone Rectal available generically Increased risk of respiratory and CNS depression Details Thiopropazate Hydroxychloroquine Plaquenil An increased risk of seizures Details Thiopropazate Lacosamide Injection Motpoly An increased risk of CNS depression Details Thiopropazate Levodopa Oral Inhalation Inbrija An increased risk of CNS depression Details Thiopropazate Lithium Carbonate Lithobid Weakness, dyskinesias, increased extrapyramidal symptoms, encephalopathy, and brain damage Details Thiopropazate Metoclopramide Injection Gimoti Increased risk of CNS depression Details Thiopropazate Metoclopramide Nasal Spray Gimoti Increased risk of CNS depression Details Thiopropazate Morphine Injection Astramorph® PF Increased risk of profound sedation, respiratory depression, hypotension, coma and death Details Thiopropazate Nalbuphine Injection Nubain® Increased risk of respiratory and CNS depression Details

Moderate

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

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Educational information only, not medical advice. Always confirm interactions with your pharmacist or prescriber before making any change to your medications.