Metaxalone

Manufacturer
Northwind Pharmaceuticals
Effective date
2014-06-03
Label type
HUMAN PRESCRIPTION DRUG LABEL
Version
1
Source
full-release
Hydrated at
2026-05-31 20:18:53

Label at a glance#

ProductMetaxalone
Active ingredientMETAXALONE
Label structure6 sections

Dosage and administration

DOSAGE AND ADMINISTRATION The recommended dose for adults and children over 12 years of age is one 800 mg tablet three to four times a day.

Label contents#

Full prescribing information#

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

NDC: 51655-0162-10

MFG: 65162-553-10

Metaxalone, USP

800mg

10 tablets

Rx Only

Dosage: See Package insert

Store below 77 degrees F. (25 degrees C)

Store in a tight, light resistant container (See USP).

Keep out of the reach of children.

Each tablet contains Metaxalone, USP...800mg

Mfg. By Amneal Pharmaceuticals Co. Pvt. Ltd Ahmedabad, India 38220

Repackaged by Northwind Pharmaceuticals, Indianapolis, IN 46256

Lot#:

Exp. Date:

Metaxalone 51655-162-10Metaxalone 51655-162-10

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

NDC: 51655-162-20

MFG: 65162-553-10

Metaxalone Tablets, USP

800 mg

20 Tablets

Rx only

Dosage: See package insert

Store below 77 degrees F.

Store in a tight, light resistant container (See USP)  Keep out of the reach of children.

Mfg by: Amneal Pharmaceuticals Co. Pvt. Ltd. Ahmedabad, India 38220

Repackaged by: Northwind Pharmaceuticals, Indianapolis, IN 46256

Lot #:

Exp. Date:

Metaxalone 51655-162-20Metaxalone 51655-162-20

Warnings

WARNINGS AND PRECAUTIONS SECTION

WARNINGS

Metaxalone may enhance the effects of alcohol and other CNS depressants.

PRECAUTIONS

Metaxalone should be administered with great care to patients with pre-existing liver damage. Serial liver function studies should be performed in these patients.

False-positive Benedict’s tests, due to an unknown reducing substance, have been noted. A glucose-specific test will differentiate findings.

Taking metaxalone with food may enhance general CNS depression; elderly patients may be especially susceptible to this CNS effect. (See CLINICAL PHARMACOLOGY: Pharmacokinetics and PRECAUTIONS: Information for Patients section).

Information for Patients

Metaxalone may impair mental and/or physical abilities required for performance of hazardous tasks, such as operating machinery or driving a motor vehicle, especially when used with alcohol or other CNS depressants.

Drug Interactions

The sedative effects of metaxalone and other CNS depressants (e.g., alcohol, alcohol, benzodiazepines, opioids, tricyclic antidepressants) may be additive. Therefore, caution should be exercised with patients who take more than one of these CNS depressants simultaneously.

Carcinogenesis, Mutagenesis, Impairment of Fertility

The carcinogenic potential of metaxalone has not been determined.

Pregnancy

Reproduction studies in rats have not revealed evidence of impaired fertility or harm to the fetus due to metaxalone. Post marketing experience has not revealed evidence of fetal injury, but such experience cannot exclude the possibility of infrequent or subtle damage to the human fetus. Safe use of metaxalone has not been established with regard to possible adverse effects upon fetal development. Therefore, metaxalone tablets should not be used in women who are or may become pregnant and particularly during early pregnancy unless, in the judgement of the physician, the potential benefits outweigh the possible hazards.

Nursing Mothers

It is not known whether this drug is secreted in human milk. As a general rule, nursing should not be undertaken while a patient is on a drug since many drugs are excreted in human milk.

Pediatric Use

Safety and effectiveness in children 12 years of age and below have not been established.

Adverse Reactions

ADVERSE REACTIONS SECTION

ADVERSE REACTIONS

The most frequent reactions to metaxalone include:

CNS: drowsiness, dizziness, headache, and nervousness or “irritability”;

Digestive: nausea, vomiting, gastrointestinal upset.

Other adverse reactions are:

Immune System: hypersensitivity reaction, rash with or without pruritus;

Hematologic: leukopenia; hemolytic anemia;

Hepatobiliary: jaundice.

Though rare, anaphylactoid reactions have been reported with metaxalone.

Dosage and Administration

DOSAGE & ADMINISTRATION SECTION

DOSAGE AND ADMINISTRATION

The recommended dose for adults and children over 12 years of age is one 800 mg tablet three to four times a day.

DailyMed Product Concepts#

Product concept, Relation, Version table
Product conceptRelationVersionEffective
4fe1c2a6-5488-f909-3872-734054eb745aProduct name520181231
776ba7f6-e5b0-442b-bd42-1fdfdfd821a4Product name120150615
68c52498-c9cb-48ab-a792-a4876149361eProduct name120150409

FDA-Initiated Inactive NDC Indexing#

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDCDashboard titleSPL versionValidationDashboard ZIP
51655-162METAXALONE TABLET [NORTHWIND PHARMACEUTICALS]1Legacy NDC20140617_5a0f574e-df84-4682-83eb-87272a7f5294.zip

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
65162-553-10EA - Each65162-55350f62890-6bd3-42d9-a06e-3920d90a984812013-08-02

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
IngredientTypeUNIISPL versionUploaded
METAXALONEACTIVE INGREDIENT1NMA9J598Y1
METAXALONEACTIVE MOIETY1NMA9J598Y1

Products#

Every source-derived product name is available through these pages.

DailyMed product names page 1 of 1 · 1 matching rows.

NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
51655-16251655-162-10, 51655-162-20
65162-553

Ingredients#

Every source-derived ingredient row is available through these pages.

DailyMed ingredient rows page 1 of 1 · 1 matching rows.

Name, UNII, Kind table
NameUNIIKind
METAXALONE1NMA9J598YACTIB

Source Document#

Source XML

Orange Book application contexts#

All distinct exact application/product contexts derived from this label’s complete NDC list are paginated below.

Orange Book application contexts page 1 of 1 · 1 matching rows.

Source provenance: Browse the complete Orange Book source catalog · source snapshot 44.

Orange Book products#

Current product rows page 1 of 1 · 1 matching rows.

Application-product, Trade name, Ingredient table
Application-productTrade nameIngredientStrengthDosage form / routeTE codesRLD / RSApproval date
A203399-001METAXALONEMETAXALONE800MGTABLET / ORALABRS2013-06-21

Therapeutic equivalence codes#

Current TE-code rows page 1 of 1 · 1 matching rows.

Application-product, TE code table
Application-productTE code
A203399-001AB

Observed Orange Book product history#

Observed FDA ZIP history: Each table is queried independently by exact application/product key from successfully parsed Orange Book snapshots. Capture times identify archived source observations; absence or a change between snapshots is not inferred. FDA publication files that were not recoverable as structured ZIP data are not represented as states.

Product history page 1 of 2 · 44 observed states.

Captured, Edition, Application-product table
CapturedEditionApplication-productTrade nameStrengthDosage form / routeProduct TE source textRLD / RSApproval dateSource SHA-256
2026-10-15 13:18:302026-09A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21c2088c7a36db…
2026-09-14 22:38:342026-08A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-2184e616aacf4f…
2026-08-18 06:07:402026-07A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21caaa826d4ba7…
2026-02-19 14:30 UTC2026-02A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21011fe1cb6892…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-2131067a03dcf5…
2025-08-23 18:47 UTC2025-08A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-216a471c1ec25d…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21fd3edfee7708…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21b8a1b40f171c…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-2103ed91905a0d…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-212680178bc6a6…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-215bbf6a4d5a75…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21d8e5a09893c0…
2024-10-29 15:01 UTC2024-10A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21d06236e962d9…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-2179d66fd596c7…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21301d65b070ca…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-211e350fbaab3a…
2024-05-31 18:47 UTC2024-05A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-218072bd15b7f6…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06A203399-001METAXALONE800MGTABLET / ORALAB2013-06-215c6f7cd8ea54…
2022-04-08 23:34 UTC2022-04A203399-001METAXALONE800MGTABLET / ORALAB2013-06-215d02ea3f76ae…
2022-04-04 05:41 UTC2022-04A203399-001METAXALONE800MGTABLET / ORALAB2013-06-214b0b4de00fa7…
2019-12-13 00:20 UTC2019-12A203399-001METAXALONE800MGTABLET / ORALAB2013-06-2174a2ff9319b5…
2022-03-09 01:35 UTC2022-03A203399-001METAXALONE800MGTABLET / ORALAB2013-06-21bb7c543d1eb4…
2021-12-28 21:50 UTC2021-12A203399-001METAXALONE800MGTABLET / ORALAB2013-06-21782e0a99824c…
2021-05-05 16:15 UTC · 3 captures of this ZIP2021-05A203399-001METAXALONE800MGTABLET / ORALAB2013-06-2187673890dc5c…
2021-03-12 10:30 UTC2021-03A203399-001METAXALONE800MGTABLET / ORALAB2013-06-215aa47cf7b7d7…
2020-12-22 03:56 UTC2020-12A203399-001METAXALONE800MGTABLET / ORALAB2013-06-218869cabd3fbd…
2020-11-12 02:37 UTC2020-11A203399-001METAXALONE800MGTABLET / ORALAB2013-06-21c0c555d07b60…
2019-12-14 00:12 UTC2019-12A203399-001METAXALONE800MGTABLET / ORALAB2013-06-213f01610625f2…
2019-09-15 20:21 UTC2019-09A203399-001METAXALONE800MGTABLET / ORALAB2013-06-21b00525d2431f…
2019-07-19 19:46 UTC2019-07A203399-001METAXALONE800MGTABLET / ORALAB2013-06-21ea99ee380514…
2024-03-16 18:09 UTC · 4 captures of this ZIP2024-03A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-216a51e52b5d6a…
2024-02-18 07:12 UTC2024-02A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-211c564ffb4f44…
2023-12-20 04:57 UTC2023-12A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21ea1830bbd6c7…
2023-11-28 05:40 UTC · 2 captures of this ZIP2023-11A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-21a72a2bbeb626…
2023-10-25 00:34 UTC · 2 captures of this ZIP2023-10A203399-001METAXALONE800MGTABLET / ORALABRS2013-06-219b2671bbb829…
2023-07-15 15:27 UTC · 2 captures of this ZIP2023-07A203399-001METAXALONE800MGTABLET / ORALAB2013-06-21a67488948f0b…
2023-06-13 01:57 UTC · 3 captures of this ZIP2023-06A203399-001METAXALONE800MGTABLET / ORALAB2013-06-213f0d92c62455…
2023-05-13 08:27 UTC2023-05A203399-001METAXALONE800MGTABLET / ORALAB2013-06-21053a50430f4f…
2023-01-26 05:58 UTC2023-01A203399-001METAXALONE800MGTABLET / ORALAB2013-06-213bdfa0b2c4d7…
2022-11-12 20:34 UTC · 5 captures of this ZIP2022-11A203399-001METAXALONE800MGTABLET / ORALAB2013-06-213a93d1ddd44b…

Observed Orange Book normalized TE history#

Normalized TE history page 1 of 2 · 44 observed states.

Captured, Edition, Application-product table
CapturedEditionApplication-productTE codeOrderSource SHA-256
2026-10-15 13:18:302026-09A203399-001AB1c2088c7a36db…
2026-09-14 22:38:342026-08A203399-001AB184e616aacf4f…
2026-08-18 06:07:402026-07A203399-001AB1caaa826d4ba7…
2026-02-19 14:30 UTC2026-02A203399-001AB1011fe1cb6892…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12A203399-001AB131067a03dcf5…
2025-08-23 18:47 UTC2025-08A203399-001AB16a471c1ec25d…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03A203399-001AB1fd3edfee7708…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02A203399-001AB1b8a1b40f171c…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01A203399-001AB103ed91905a0d…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12A203399-001AB12680178bc6a6…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09A203399-001AB15bbf6a4d5a75…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11A203399-001AB1d8e5a09893c0…
2024-10-29 15:01 UTC2024-10A203399-001AB1d06236e962d9…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08A203399-001AB179d66fd596c7…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07A203399-001AB1301d65b070ca…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06A203399-001AB11e350fbaab3a…
2024-05-31 18:47 UTC2024-05A203399-001AB18072bd15b7f6…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06A203399-001AB15c6f7cd8ea54…
2022-04-08 23:34 UTC2022-04A203399-001AB15d02ea3f76ae…
2022-04-04 05:41 UTC2022-04A203399-001AB14b0b4de00fa7…
2019-12-13 00:20 UTC2019-12A203399-001AB174a2ff9319b5…
2022-03-09 01:35 UTC2022-03A203399-001AB1bb7c543d1eb4…
2021-12-28 21:50 UTC2021-12A203399-001AB1782e0a99824c…
2021-05-05 16:15 UTC · 3 captures of this ZIP2021-05A203399-001AB187673890dc5c…
2021-03-12 10:30 UTC2021-03A203399-001AB15aa47cf7b7d7…
2020-12-22 03:56 UTC2020-12A203399-001AB18869cabd3fbd…
2020-11-12 02:37 UTC2020-11A203399-001AB1c0c555d07b60…
2019-12-14 00:12 UTC2019-12A203399-001AB13f01610625f2…
2019-09-15 20:21 UTC2019-09A203399-001AB1b00525d2431f…
2019-07-19 19:46 UTC2019-07A203399-001AB1ea99ee380514…
2024-03-16 18:09 UTC · 4 captures of this ZIP2024-03A203399-001AB16a51e52b5d6a…
2024-02-18 07:12 UTC2024-02A203399-001AB11c564ffb4f44…
2023-12-20 04:57 UTC2023-12A203399-001AB1ea1830bbd6c7…
2023-11-28 05:40 UTC · 2 captures of this ZIP2023-11A203399-001AB1a72a2bbeb626…
2023-10-25 00:34 UTC · 2 captures of this ZIP2023-10A203399-001AB19b2671bbb829…
2023-07-15 15:27 UTC · 2 captures of this ZIP2023-07A203399-001AB1a67488948f0b…
2023-06-13 01:57 UTC · 3 captures of this ZIP2023-06A203399-001AB13f0d92c62455…
2023-05-13 08:27 UTC2023-05A203399-001AB1053a50430f4f…
2023-01-26 05:58 UTC2023-01A203399-001AB13bdfa0b2c4d7…
2022-11-12 20:34 UTC · 5 captures of this ZIP2022-11A203399-001AB13a93d1ddd44b…

openFDA label cross-check#

OpenFDA label data provides additional search and identifier links. DailyMed’s Structured Product Label is the canonical label on FDA.report. Matching records are deduplicated before they are shown below.

Matched openFDA labels page 1 of 1 · 2 matching rows.

Brand, Generic, Manufacturer table
BrandGenericManufacturerSPL set IDEffective dateAvailable safety fieldsJoin
47cd9df3-9511-24fe-e063-6394a90aaf1c5a0f574e-df84-4682-83eb-87272a7f52942026-01-07Warnings, Adverse reactionsExact identifier
spl set id: 5a0f574e-df84-4682-83eb-87272a7f5294
MetaxaloneMETAXALONEAmneal Pharmaceuticals LLC3aa9dba9-29b0-4520-a0f7-66d19d52c6bc2025-03-28Warnings, Adverse reactionsExact identifier
ndc (product): 65162-553

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.