The short version
Just 2 companies supply this market — thin enough that a single exit would be felt immediately.
Market view
ethosuximide · Powder
3 marketed package NDCs · 2 active manufacturers
Most dispensed: 250 mg · Capsule · #100 capsules/bottle · 250 mg/5mL · Solution · #1 bottle, plastic/carton / 474 ml in 1 bottle, plastic · 250 mg/5mL · Solution · #473 mL/bottle · 250 mg · Capsule, Liquid Filled · #100 capsule, liquid filleds/bottle, plastic
What changed in the last 90 days
Every detected change for ethosuximide, newest first — price moves, shortages, recalls, and manufacturers entering or leaving. Detected by comparing each day’s federal data against the day before.
- EthosuximideAug 19, 2026Price upNADAC $0.24085 → $0.2483 per unit (+3.09%)
- EthosuximideAug 19, 2026Price upNADAC $0.24085 → $0.2483 per unit (+3.09%)
- EthosuximideAug 19, 2026Price upNADAC $0.24085 → $0.2483 per unit (+3.09%)
- EthosuximideAug 19, 2026Price upNADAC $0.08792 → $0.09388 per unit (+6.78%)
- EthosuximideAug 19, 2026Price upNADAC $0.24085 → $0.2483 per unit (+3.09%)
- EthosuximideAug 19, 2026Price upNADAC $0.24085 → $0.2483 per unit (+3.09%)
- EthosuximideAug 19, 2026Price upNADAC $0.08792 → $0.09388 per unit (+6.78%)
- EthosuximideJul 22, 2026Price downNADAC $0.08934 → $0.08792 per unit (-1.59%)
- EthosuximideJul 22, 2026Price downNADAC $0.25234 → $0.24085 per unit (-4.55%)
- EthosuximideJul 22, 2026Price downNADAC $0.25234 → $0.24085 per unit (-4.55%)
Same drug class
Other molecules FDA puts in Anti-epileptic Agent, with whether each is in shortage right now. Same class is not the same drug — substitution is a clinical decision, and this is a supply picture, not a recommendation.
- valproate sodium· in shortage
- divalproex sodium d/r· 1 maker
- divalproex sodium er· 1 maker
- lamotirigine· 1 maker
- lamotrigine chewable dispersible· 1 maker
- lamotrigine extended release· 1 maker
- lamotrigine er· 2 makers
- methsuximide· 3 makers
- extended phenytoin sodium· 4 makers
- lamotrigine extended-release· 4 makers
- tiagabine hydrochloride· 6 makers
- fosphenytoin sodium· 12 makers
Common questions
- Is Ethosuximide in shortage right now?
- No. FDA does not currently list Ethosuximide in shortage. This page is rebuilt every morning from FDA's shortage database, so a new posting appears here the day it is published.
- Who makes Ethosuximide?
- 13 companies have marketed Ethosuximide in the last 30 days, according to the FDA NDC Directory. Every manufacturer and package is listed on this page.
- What does Ethosuximide cost?
- The typical pharmacy pays about $0.2483 per unit, based on the most recent CMS NADAC survey of actual acquisition costs. That is what the pharmacy pays for the drug itself — not the cash price, and not what an insurer is billed.
All marketed products
Expand a strength to see its dosage forms, then package sizes, then each manufacturer and NDC. Click an NDC for its full detail page.