Drug
Who makes ethosuximide?
9 companies list ethosuximide as a human prescription drug, including under the names Zarontin. Forms: capsule; capsule, liquid filled; solution. Routes: oral.
Labellers from the openFDA NDC Directory. A labeller is the firm named on the label, not necessarily the site that made the product, and a listing is not an FDA approval. Data as of 24 Sept 2026. Methodology
Companies listing ethosuximide
| Company | Forms | Application | NDCs | Registered sites |
|---|---|---|---|---|
| Epic Laboratories, LLCUnited States | capsule | ANDAANDA210654 | 2 | 3 |
| Chartwell RX, LLC. | capsule; solution | ANDAANDA040506, ANDA200892 | 2 | 0 |
| Parke-Davis Div of Pfizer Inc | capsule; solution | ANDA, NDAANDA080258, NDA012380 | 2 | 0 |
| Strides Pharma Science LimitedIndia | capsule | ANDAANDA211928 | 1 | 5 |
| Bionpharma Inc.India | capsule, liquid filled | ANDAANDA040430 | 1 | 1 |
| Bryant Ranch PrepackUnited States | capsule, liquid filled | ANDAANDA040430 | 1 | 1 |
| PAI Holdings, LLCUnited States | solution | ANDAANDA040253 | 1 | 1 |
| Chartwell Governmental & Specialty RX, LLC. | solution | ANDAANDA040506 | 1 | 0 |
| Mylan Pharmaceuticals, Inc. | solution | ANDAANDA080258 | 1 | 0 |
Bulk ingredient listings
- B.V. KATWIJK CHEMIENetherlands · 1 NDC
- Professional Compounding Centers of America dba PCCAUnited States · 1 NDC
Enquiry
Common questions
- Who makes ethosuximide?
- 9 companies list ethosuximide as a human prescription drug in the openFDA NDC Directory, led by Epic Laboratories, LLC, Chartwell RX, LLC., Parke-Davis Div of Pfizer Inc, Strides Pharma Science Limited, Bionpharma Inc.. Each is the labeller, the firm named on the label; the product may be made at a site registered to another company.
- Is there a generic Zarontin?
- 9 companies list ethosuximide under an abbreviated new drug application (ANDA), the application type used for generics, and 1 under an NDA or BLA. Listing status is from the NDC Directory; it is not a statement of availability.
- Who supplies ethosuximide active ingredient?
- 2 companies list ethosuximide as a bulk ingredient, including B.V. KATWIJK CHEMIE, Professional Compounding Centers of America dba PCCA.