Anti-epileptic Agent

Established Pharmacologic Class (EPC) Comparison, United States, 2015

Total Prescriptions in (2015)

Drug Name Total Prescriptions (2015) Percent Share
Gabapentin 43,320,666 61.1%
Lamotrigine 12,096,328 17.1%
Divalproex Sodium 6,112,173 8.6%
Phenytoin 4,171,794 5.9%
Oxcarbazepine 3,735,666 5.3%
Primidone 1,506,283 2.1%

Prescription data source: Medical Expenditure Panel Survey (MEPS) 2005-2015. Agency for Healthcare Research and Quality (AHRQ), Rockville, MD. ClinCalc DrugStats Database version 18.0. Read more about the ClinCalc DrugStats database.

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Updated Mar 4, 2017
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