Chlorzoxazone
17 NDCs across 8 manufacturers|17 Generic,0 Brand
Chlorzoxazone is used to treat muscle cramp, muscle rigidity, myositis, pain and spasm, per the National Library of Medicine's MED-RT classification.
▸ More about this market▾ Less
The brand product was first FDA-approved before 1982, and the first generic was approved Jan 1, 1982. FDA's Orange Book lists 16 AB-rated (therapeutically equivalent) products for this ingredient. In 2024, Medicare Part D spent $15 million on Chlorzoxazone across 63,000 claims for 19,000 beneficiaries.
Chlorzoxazone is available as 17 NDCs from 8 manufacturers (17 generic, 0 brand), with NADAC prices from $0.21 to $2.52 per EA — the most expensive product costs about 12× the cheapest. Every pack size and labeler in this drug market is compared side-by-side below.
Total NDCs
17
17G / 0B
Manufacturers
8
competing in market
Price Spread
$0.21 – $2.52
per EA
7d Activity
avg -1.4% WoW · of 17 NDCs
Market Price Trend
Monthly average NADAC per unit, split by generic and brand.
Explore this market from other angles
Move from the molecule page into the supplier, class, and trend views that create the strongest internal-link cluster for this market.
Top supplier
Rising Pharma Holdings Inc. manufacturer profile
Open the supplier page for the manufacturer with the strongest footprint in this market.
Lead class
Muscle Relaxant class view
See how this market rolls up into the broader therapeutic class and compare other drugs in the same bucket.
Trend hub
Latest market trends
Move from this single molecule into the current cross-market mover and volatility view.
Guide
How to interpret NADAC
Review the benchmark methodology behind the prices and spreads shown on this market page.
Manufacturer Breakdown
8 manufacturers producing CHLORZOXAZONE
| Drug ↕ | Price | 7d Change ↕ |
|---|---|---|
CHLORZOXAZONE 250 MG TABLET | $2.5208 per EA | — |
CHLORZOXAZONE 250 MG TABLET | $2.5208 per EA | — |
CHLORZOXAZONE 250 MG TABLET | $2.5208 per EA | — |
CHLORZOXAZONE 250 MG TABLET | $2.5208 per EA | — |
CHLORZOXAZONE 750 MG TABLET | $0.6754 per EA | -2.94% |
CHLORZOXAZONE 750 MG TABLET | $0.6754 per EA | -2.94% |
CHLORZOXAZONE 750 MG TABLET | $0.6754 per EA | -2.94% |
CHLORZOXAZONE 375 MG TABLET | $0.6665 per EA | — |
CHLORZOXAZONE 375 MG TABLET | $0.6665 per EA | — |
CHLORZOXAZONE 375 MG TABLET | $0.6665 per EA | — |
CHLORZOXAZONE 500 MG TABLET | $0.2101 per EA | -0.74% |
CHLORZOXAZONE 500 MG TABLET | $0.2101 per EA | -0.74% |
CHLORZOXAZONE 500 MG TABLET | $0.2101 per EA | -0.74% |
CHLORZOXAZONE 500 MG TABLET | $0.2101 per EA | -0.74% |
CHLORZOXAZONE 500 MG TABLET | $0.2101 per EA | -0.74% |
CHLORZOXAZONE 500 MG TABLET | $0.2101 per EA | -0.74% |
CHLORZOXAZONE 500 MG TABLET | $0.2101 per EA | -0.74% |
Frequently Asked Questions
What is Chlorzoxazone used to treat?
Chlorzoxazone is used to treat muscle cramp, muscle rigidity, myositis, pain and spasm, per the National Library of Medicine's MED-RT classification.
When did Chlorzoxazone become available as a generic?
FDA approved the first generic Chlorzoxazone (ANDA) on Jan 1, 1982. The Orange Book currently lists 16 AB-rated products for this ingredient, meaning FDA considers them therapeutically equivalent to the brand.
How much does Medicare spend on Chlorzoxazone?
In 2024, Medicare Part D spent $15 million on Chlorzoxazone across 63,000 claims for 19,000 beneficiaries.
How many Chlorzoxazone products are on the market?
The Chlorzoxazone drug market contains 17 NDCs from 8 manufacturers — 17 generic and 0 brand products.
What is the price range for Chlorzoxazone?
NADAC reference prices for Chlorzoxazone range from $0.2101 to $2.5208 per EA — the most expensive product costs about 12× the cheapest.
Which manufacturers make Chlorzoxazone?
8 manufacturers list Chlorzoxazone in NADAC. Ranked by number of NDCs, the largest are Rising Pharma Holdings Inc. (4), Aurobindo Pharma Limited (4), Endo USA Inc. (2), Actavis Pharma, Inc. (2), Novitium Pharma LLC (2).
How has the price of Chlorzoxazone changed recently?
Over the past 7 days, 0 Chlorzoxazone NDCs rose and 10 fell, with a market-wide average change of -1.4%.