Manufacturing Establishments1
FDA-registered manufacturing facilities and establishments involved in the production, packaging, or distribution of this drug product.
A-S Medication Solutions
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Products1
Detailed information about drug products covered under this FDA approval, including NDC codes, dosage forms, ingredients, and administration routes.
Chlorzoxazone
Product Details
Drug Labeling Information
Complete FDA-approved labeling information including indications, dosage, warnings, contraindications, and other essential prescribing details.
DESCRIPTION SECTION
DESCRIPTION
Chlorzoxazone USP is a centrally acting skeletal muscle relaxant, available as tablets of 500 mg for oral administration. Its chemical name is 5-Chloro-2-benzoxazolinone, and its structural formula is:
Chlorzoxazone Structural Formula
C7H4CINO2 MW 169.57
Chlorzoxazone USP is a white or practically white, practically odorless, crystalline powder. Chlorzoxazone is slightly soluble in water; sparingly soluble in alcohol, in isopropyl alcohol, and in methanol; soluble in solutions of alkali hydroxides and ammonia.
Chlorzoxazone tablets contain the inactive ingredients Docusate Sodium, Lactose (hydrous), Magnesium Stearate, Microcrystalline Cellulose, Pregelatinized Starch, Sodium Benzoate, and Sodium Starch Glycolate.