Anti-epileptic Agent

Where is Ethosuximide made?

11 companies sell it under their own name and 1 repackager rebottle it. Their labels name 7 factories in the United States, Switzerland, China and India.

United States 4Switzerland 1China 1India 1
United States: 4Switzerland: 1China: 1India: 1

Companies and their factories

Company on the labelFactoryWhereLast FDA inspection
Akorn250 mg · NDC 61748-025 Swiss Caps AGMakes it Kirchberg, SwitzerlandProblems found, fixed voluntarilyJun 2023
Banner Life Sciences LLC.250 mg · NDC 69387-108 Banner Pharmacaps IncMakes it Location not on fileNot inspected on record
Bionpharma Inc.250 mg · NDC 69452-152 Patheon Softgels Inc.Makes it High Point, NC, United StatesProblems found, fixed voluntarilyJul 2025
Epic Pharma, LLC250 mg · NDC 42806-708, 42806-711 Humanwell PuraCap Pharmaceuticals (Wuhan) Co., LtdMakes it Wuhan, ChinaProblems found, fixed voluntarilyMar 2025
Mylan Pharmaceuticals Inc.250 mg per 5 mL · NDC 59762-2350 Pharmacia & Upjohn Company LLCMakes it, tests it, packages it and labels it Kalamazoo, MI, United StatesProblems found, fixed voluntarilyJun 2023
Parke-Davis Div of Pfizer Inc Zarontin250 mg, 250 mg per 5 mL · NDC 0071-0237, 0071-2418 Pharmacia & Upjohn Company LLCMakes it, tests it and packages it Kalamazoo, MI, United StatesProblems found, fixed voluntarilyJun 2023
Pharmaceutical Associates, Inc.250 mg per 5 mL · NDC 0121-0670 PAI Holdings, LLC dba Pharmaceutical Associates, Inc. and dba PAI PharmaMakes it Greenville, SC, United StatesNo problems foundAug 2025
Strides Pharma Science Limited250 mg · NDC 64380-878 Strides Pharma Science LimitedMakes it, tests it and packages it Bengaluru, IndiaProblems found, fixed voluntarilyMay 2026
Zydus Pharmaceuticals (USA) Inc.250 1 · NDC 68382-443 Heritage Pharma Labs Inc. d/b/a Avet Pharmaceuticals Labs Inc.Makes it and tests it East Brunswick, NJ, United StatesNo problems foundSep 2023
Chartwell Governmental & Specialty RX, LLC.250 mg per 5 mL · NDC 68999-064The label doesn't name the factory. Plants this company names for other drugs
Chartwell RX, LLC.250 mg, 250 mg per 5 mL · NDC 62135-790, 62135-064The label doesn't name the factory. Plants this company names for other drugs

Repackaged by

These companies buy Ethosuximide in bulk and rebottle it, often for mail-order, clinic or hospital pharmacies. If your bottle shows one of these names, open its NDC to see who made the pills inside.

Recalls

Class I recalls are the most serious; Class III the least. A recall covers specific lots, listed on each recall.