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Brand-name prescription medicine

Zanaflex

Generic name: Tizanidine

FDA application holder: Legacy

Official data, not advice

Everything here comes from the U.S. Food and Drug Administration (FDA): the NDC Directory, Drugs@FDA, the official labels and recall reports; pharmacy costs come from the Centers for Medicare & Medicaid Services (CMS). Each fact shows its source and date.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or switch any medicine, including a switch between a brand and a generic.

In an emergency, call 911. If someone may have taken too much of a medicine, call Poison Help: 1‑800‑222‑1222.

Quick answers

What is Zanaflex?
Zanaflex is a brand name of Tizanidine, a prescription medicine. The FDA NDC Directory lists 9 Zanaflex products in 5 strengths and forms.
Who makes Zanaflex?
Legacy holds the FDA application for Zanaflex (NDA020397, approved November 27, 1996). 2 other companies (repackagers or distributors) also list Zanaflex products.
Is there a generic or store brand of Zanaflex?
Yes. The FDA NDC Directory lists 135 other products with the same active ingredients, strength and form as a Zanaflex product, 135 of them generic. Ask your pharmacist whether one is right for you.
Has Zanaflex been recalled?
No recall linked to Zanaflex products (by their NDC code or label) appears in the FDA enforcement reports we use.

What Zanaflex is

Each Zanaflex product as listed in the FDA NDC Directory, by active ingredient, strength and form, with its official label. “Same medicine, other names” counts the other products with exactly the same active ingredients, strength and form (generic versions, store brands and other brands); inactive ingredients can differ.

Tizanidine · prescription medicine

Strength and formProduct namesSame medicine, other namesLabel
tizanidine hydrochloride 2 mg
capsule (oral)
Zanaflex 16 products, 14 companies DailyMed
tizanidine hydrochloride 4 mg
capsule (oral)
Zanaflex 23 products, 17 companies DailyMed
tizanidine hydrochloride 4 mg
tablet (oral)
Zanaflex 69 products, 36 companies DailyMed
tizanidine hydrochloride 6 mg
capsule (oral)
Zanaflex 25 products, 18 companies DailyMed
tizanidine hydrochloride 8 mg
capsule (oral)
Zanaflex 2 products, 2 companies DailyMed

Its page lists every product and company, the FDA label’s uses and boxed warning, approvals, shortages and recalls: Tizanidine →

FDA approval

  • NDA: New Drug Application: how a new (usually brand-name) medicine is approved.
  • ANDA: Abbreviated New Drug Application: how a generic version is approved.
FDA applications of Zanaflex products (Drugs@FDA)
ApplicationHolderFirst approvedProducts
NDA020397LegacyNovember 27, 19962
NDA021447LegacyAugust 29, 20026
ANDA213798Rubicon ResearchMay 27, 20201

Companies that list Zanaflex

The company named on the package (holder, repackager or distributor), as listed in the FDA NDC Directory, with its number of Zanaflex products.

Recalls

No recall linked to Zanaflex products (by their NDC code or label) appears in the FDA enforcement reports.

Sources

  1. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  2. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drug labeling (SPL, openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  5. NADAC (National Average Drug Acquisition Cost) 2026 — Centers for Medicare & Medicaid Services (CMS), data.medicaid.gov, list of November 4, 2026, retrieved November 7, 2026

Which names get a brand page: a name the NDC Directory lists for a medicine, held by one company (the FDA application holder, or the company named on most of its products), that is not just a description, and that is not the only product of its medicine.

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