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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