alpha-1 Adrenergic Agonist

Established Pharmacologic Class (EPC) Comparison, United States, 2020

Total Prescriptions in (2020)

Drug Name	Total Prescriptions (2020)	Percent Share
Chlorpheniramine; Phenylephrine	68,248	30.5%
Doxylamine; Phenylephrine	40,571	18.2%
Brompheniramine; Dextromethorphan; Phenylephrine	40,347	18.1%
Dextromethorphan; Guaifenesin; Phenylephrine	27,302	12.2%
Dexchlorpheniramine; Dextromethorphan; Phenylephrine	22,897	10.2%
Brompheniramine; Phenylephrine	20,355	9.1%
Guaifenesin; Phenylephrine	3,810	1.7%

Total Prescriptions by Drug Over Time

Drug Class Prescribing Trends Over Time

Prescription data source: Medical Expenditure Panel Survey (MEPS) 2013-2020. Agency for Healthcare Research and Quality (AHRQ), Rockville, MD. ClinCalc DrugStats Database version 2022.08. 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).

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Updated Sep 12, 2021

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