Uncompetitive N-methyl-D-aspartate Receptor Antagonist

Established Pharmacologic Class (EPC) Comparison, United States, 2024

Total Prescriptions in (2024)

Drug Name	Total Prescriptions (2024)	Percent Share
Dextromethorphan; Promethazine	1,773,420	57.4%
Brompheniramine; Dextromethorphan; Pseudoephedrine	702,500	22.7%
Dextromethorphan	326,898	10.6%
Dextromethorphan; Triprolidine	79,404	2.6%
Chlorpheniramine; Dextromethorphan; Phenylephrine	69,747	2.3%
Dextromethorphan; Guaifenesin	45,121	1.5%
Brompheniramine; Dextromethorphan; Phenylephrine	28,853	0.9%
Dexbrompheniramine; Dextromethorphan; Phenylephrine	19,157	0.6%
Dextromethorphan; Guaifenesin; Phenylephrine	18,373	0.6%
Dextromethorphan; Phenylephrine; Pyrilamine	17,542	0.6%
Dextromethorphan; Guaifenesin; Pseudoephedrine	6,963	0.2%
Dextromethorphan; Phenylephrine; Triprolidine	2,319	0.1%

Total Prescriptions by Drug Over Time

Drug Class Prescribing Trends Over Time

Prescription data source: Medical Expenditure Panel Survey (MEPS) 2014-2024. Agency for Healthcare Research and Quality (AHRQ), Rockville, MD. ClinCalc DrugStats Database version 2026.08. Read more about the ClinCalc DrugStats database.

All ClinCalc DrugStats figures and graphs on this page are licensed under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0).

Search

Mailing List

Get Email Updates

New and Popular

Open Menu

Cite This Page

Show AMA citation

PharmPraxis - Build NAPLEX practice exams

Disclaimer - Privacy Policy - Contact Us
Updated Sep 12, 2021

Top