Anti-epileptic Agent

Established Pharmacologic Class (EPC) Comparison, United States, 2018

Total Prescriptions in (2018)

Drug Name Total Prescriptions (2018) Percent Share
Gabapentin 45,586,654 65.6%
Lamotrigine 11,582,775 16.7%
Divalproex Sodium 5,275,298 7.6%
Oxcarbazepine 3,915,509 5.6%
Phenytoin 1,643,498 2.4%
Primidone 1,437,305 2.1%

Prescription data source: Medical Expenditure Panel Survey (MEPS) 2008-2018. Agency for Healthcare Research and Quality (AHRQ), Rockville, MD. ClinCalc DrugStats Database version 21.0. Read more about the ClinCalc DrugStats database.

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Updated Jul 19, 2018
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