The short version
18 companies supply this market — deep enough that no single failure threatens the supply. The price has fallen 46% in a year, to $0.4500 per unit — and generics that get this cheap tend to get abandoned rather than defended.
Market view
dimethyl fumarate · Capsule, Delayed Release
60 marketed package NDCs · 18 active manufacturers
Most dispensed: 240 mg · Capsule, Delayed Release · #1 bottle/carton / 60 capsule, delayed release in 1 bottle · 120 mg · Capsule, Delayed Release · #1 bottle/carton / 14 capsule, delayed release in 1 bottle · 120 mg · Capsule, Delayed Release · #14 capsule, delayed releases/bottle, plastic · 240 mg · Capsule, Delayed Release · #60 capsule, delayed releases/bottle, plastic
Price range and competition
RSS: changes for this drugEvery company selling this drug reports its own price. The line follows the middle of the pack; the shaded band holds the middle half of companies — the wider it is, the more they disagree.
Latest · Sep 2026 — typical price $0.45 · middle half $0.4471–$0.45 · full range $0.4471–$0.6173 · 25 products · 18 companies
ⓘ How this was built
Data sources
- CMS NADAC weekly survey + monthly archives back to 2013 (data.medicaid.gov)
- CMS Federal Upper Limit files (weighted AMP)
- FDA NDC Directory (openFDA) — maker roster
Method
Each month's band spans the NADAC unit prices of every NDC of this drug (min, quartiles, median, max), split into brand and generic cohorts by FDA marketing category. Maker counts come from distinct labelers with the NDC actively listed.
Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.
What changed in the last 90 days
Every detected change for dimethyl fumarate, newest first — price moves, shortages, recalls, and manufacturers entering or leaving. Detected by comparing each day’s federal data against the day before.
- Dimethyl fumarateAug 19, 2026Price upNADAC $0.42228 → $0.45002 per unit (+6.57%)
- Dimethyl fumarateAug 19, 2026Price downNADAC $0.48133 → $0.44708 per unit (-7.12%)
- Dimethyl FumarateAug 19, 2026Price upNADAC $0.42228 → $0.45002 per unit (+6.57%)
- Dimethyl FumarateAug 19, 2026Price upNADAC $0.42228 → $0.45002 per unit (+6.57%)
- Dimethyl FumarateAug 19, 2026Price downNADAC $0.48133 → $0.44708 per unit (-7.12%)
- Dimethyl FumarateAug 19, 2026Price upNADAC $0.42228 → $0.45002 per unit (+6.57%)
- Dimethyl FumarateAug 19, 2026Price downNADAC $0.48133 → $0.44708 per unit (-7.12%)
- Dimethyl FumarateAug 19, 2026Price upNADAC $0.42228 → $0.45002 per unit (+6.57%)
- Dimethyl FumarateAug 19, 2026Price downNADAC $0.48133 → $0.44708 per unit (-7.12%)
- Dimethyl fumarateAug 19, 2026Price upNADAC $0.42228 → $0.45002 per unit (+6.57%)
Common questions
- Is Dimethyl fumarate in shortage right now?
- No. FDA does not currently list Dimethyl fumarate 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 Dimethyl fumarate?
- 41 companies have marketed Dimethyl fumarate in the last 30 days, according to the FDA NDC Directory. Every manufacturer and package is listed on this page.
- What does Dimethyl fumarate cost?
- The typical pharmacy pays about $0.4500 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.