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.
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.
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:
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:
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
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
The recommended dose for adults and children over 12 years of age is one 800 mg tablet three to four times a day.
For more information regarding this drug please see the manufacturer's information online at:
Permanent Link:
dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=3aa9dba9-29b0-4520-a0f7-66d19d52c6bc
| Product concept | Relation | Version | Effective |
|---|---|---|---|
| 4fe1c2a6-5488-f909-3872-734054eb745a | Product name | 5 | 20181231 |
| 776ba7f6-e5b0-442b-bd42-1fdfdfd821a4 | Product name | 1 | 20150615 |
| 68c52498-c9cb-48ab-a792-a4876149361e | Product name | 1 | 20150409 |
| NDC | Effective | Action | Document | Indexing SPL | Related label |
|---|---|---|---|---|---|
| 51655-162-10 | 2026-01-10 | C162847 | 48780-1 | 9d75b9d0-1b8e-f424-e053-dadaa90a57ce | 5a0f574e-df84-4682-83eb-87272a7f5294 |
| 51655-162-20 | 2026-01-10 | C162847 | 48780-1 | 9d75b9d0-1b8e-f424-e053-dadaa90a57ce | 5a0f574e-df84-4682-83eb-87272a7f5294 |
| 51655-162-10 | 2020-01-31 | C162847 | 48780-1 | 9d75b9d0-1b8e-f424-e053-dadaa90a57ce | 5a0f574e-df84-4682-83eb-87272a7f5294 |
| 51655-162-20 | 2020-01-31 | C162847 | 48780-1 | 9d75b9d0-1b8e-f424-e053-dadaa90a57ce | 5a0f574e-df84-4682-83eb-87272a7f5294 |
| Package NDC | Billing unit | Product NDC | DailyMed indexing SPL | SPL version | Effective |
|---|---|---|---|---|---|
| 65162-553-10 | EA - Each | 65162-553 | 50f62890-6bd3-42d9-a06e-3920d90a9848 | 1 | 2013-08-02 |
| Ingredient | Type | UNII | SPL version | Uploaded |
|---|---|---|---|---|
| METAXALONE | ACTIVE INGREDIENT | 1NMA9J598Y | 1 | |
| METAXALONE | ACTIVE MOIETY | 1NMA9J598Y | 1 |
Every source-derived product name is available through these pages.
| Product NDC | Package NDC |
|---|---|
| 51655-162 | 51655-162-10, 51655-162-20 |
| 65162-553 |
Every source-derived ingredient row is available through these pages.
| Name | UNII | Kind |
|---|---|---|
| METAXALONE | 1NMA9J598Y | ACTIB |
All distinct exact application/product contexts derived from this label’s complete NDC list are paginated below.
| Application-product | Trade name | Ingredient | Strength | Dosage form / route | TE codes | RLD / RS | Approval date |
|---|---|---|---|---|---|---|---|
| A203399-001 | METAXALONE | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 |
| Application-product | TE code |
|---|---|
| A203399-001 | AB |
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.
| Captured | Edition | Application-product | Trade name | Strength | Dosage form / route | Product TE source text | RLD / RS | Approval date | Source SHA-256 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-10-15 13:18:30 | 2026-09 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | c2088c7a36db… |
| 2026-09-14 22:38:34 | 2026-08 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 84e616aacf4f… |
| 2026-08-18 06:07:40 | 2026-07 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | caaa826d4ba7… |
| 2026-02-19 14:30 UTC | 2026-02 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 011fe1cb6892… |
| 2025-12-14 10:44 UTC · 2 captures of this ZIP | 2025-12 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 31067a03dcf5… |
| 2025-08-23 18:47 UTC | 2025-08 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 6a471c1ec25d… |
| 2025-03-22 03:13 UTC · 3 captures of this ZIP | 2025-03 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | fd3edfee7708… |
| 2025-02-26 10:13 UTC · 3 captures of this ZIP | 2025-02 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | b8a1b40f171c… |
| 2025-01-19 17:59 UTC · 7 captures of this ZIP | 2025-01 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 03ed91905a0d… |
| 2024-12-13 21:23 UTC · 2 captures of this ZIP | 2024-12 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 2680178bc6a6… |
| 2024-09-14 05:58 UTC · 2 captures of this ZIP | 2024-09 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 5bbf6a4d5a75… |
| 2024-11-08 22:44 UTC · 3 captures of this ZIP | 2024-11 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | d8e5a09893c0… |
| 2024-10-29 15:01 UTC | 2024-10 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | d06236e962d9… |
| 2024-08-13 05:28 UTC · 3 captures of this ZIP | 2024-08 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 79d66fd596c7… |
| 2024-07-13 05:37 UTC · 2 captures of this ZIP | 2024-07 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 301d65b070ca… |
| 2024-06-18 03:08 UTC · 5 captures of this ZIP | 2024-06 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 1e350fbaab3a… |
| 2024-05-31 18:47 UTC | 2024-05 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 8072bd15b7f6… |
| 2022-06-29 02:47 UTC · 2 captures of this ZIP | 2022-06 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 5c6f7cd8ea54… | |
| 2022-04-08 23:34 UTC | 2022-04 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 5d02ea3f76ae… | |
| 2022-04-04 05:41 UTC | 2022-04 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 4b0b4de00fa7… | |
| 2019-12-13 00:20 UTC | 2019-12 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 74a2ff9319b5… | |
| 2022-03-09 01:35 UTC | 2022-03 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | bb7c543d1eb4… | |
| 2021-12-28 21:50 UTC | 2021-12 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 782e0a99824c… | |
| 2021-05-05 16:15 UTC · 3 captures of this ZIP | 2021-05 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 87673890dc5c… | |
| 2021-03-12 10:30 UTC | 2021-03 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 5aa47cf7b7d7… | |
| 2020-12-22 03:56 UTC | 2020-12 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 8869cabd3fbd… | |
| 2020-11-12 02:37 UTC | 2020-11 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | c0c555d07b60… | |
| 2019-12-14 00:12 UTC | 2019-12 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 3f01610625f2… | |
| 2019-09-15 20:21 UTC | 2019-09 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | b00525d2431f… | |
| 2019-07-19 19:46 UTC | 2019-07 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | ea99ee380514… | |
| 2024-03-16 18:09 UTC · 4 captures of this ZIP | 2024-03 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 6a51e52b5d6a… |
| 2024-02-18 07:12 UTC | 2024-02 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 1c564ffb4f44… |
| 2023-12-20 04:57 UTC | 2023-12 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | ea1830bbd6c7… |
| 2023-11-28 05:40 UTC · 2 captures of this ZIP | 2023-11 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | a72a2bbeb626… |
| 2023-10-25 00:34 UTC · 2 captures of this ZIP | 2023-10 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | RS | 2013-06-21 | 9b2671bbb829… |
| 2023-07-15 15:27 UTC · 2 captures of this ZIP | 2023-07 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | a67488948f0b… | |
| 2023-06-13 01:57 UTC · 3 captures of this ZIP | 2023-06 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 3f0d92c62455… | |
| 2023-05-13 08:27 UTC | 2023-05 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 053a50430f4f… | |
| 2023-01-26 05:58 UTC | 2023-01 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 3bdfa0b2c4d7… | |
| 2022-11-12 20:34 UTC · 5 captures of this ZIP | 2022-11 | A203399-001 | METAXALONE | 800MG | TABLET / ORAL | AB | 2013-06-21 | 3a93d1ddd44b… |
| Captured | Edition | Application-product | TE code | Order | Source SHA-256 |
|---|---|---|---|---|---|
| 2026-10-15 13:18:30 | 2026-09 | A203399-001 | AB | 1 | c2088c7a36db… |
| 2026-09-14 22:38:34 | 2026-08 | A203399-001 | AB | 1 | 84e616aacf4f… |
| 2026-08-18 06:07:40 | 2026-07 | A203399-001 | AB | 1 | caaa826d4ba7… |
| 2026-02-19 14:30 UTC | 2026-02 | A203399-001 | AB | 1 | 011fe1cb6892… |
| 2025-12-14 10:44 UTC · 2 captures of this ZIP | 2025-12 | A203399-001 | AB | 1 | 31067a03dcf5… |
| 2025-08-23 18:47 UTC | 2025-08 | A203399-001 | AB | 1 | 6a471c1ec25d… |
| 2025-03-22 03:13 UTC · 3 captures of this ZIP | 2025-03 | A203399-001 | AB | 1 | fd3edfee7708… |
| 2025-02-26 10:13 UTC · 3 captures of this ZIP | 2025-02 | A203399-001 | AB | 1 | b8a1b40f171c… |
| 2025-01-19 17:59 UTC · 7 captures of this ZIP | 2025-01 | A203399-001 | AB | 1 | 03ed91905a0d… |
| 2024-12-13 21:23 UTC · 2 captures of this ZIP | 2024-12 | A203399-001 | AB | 1 | 2680178bc6a6… |
| 2024-09-14 05:58 UTC · 2 captures of this ZIP | 2024-09 | A203399-001 | AB | 1 | 5bbf6a4d5a75… |
| 2024-11-08 22:44 UTC · 3 captures of this ZIP | 2024-11 | A203399-001 | AB | 1 | d8e5a09893c0… |
| 2024-10-29 15:01 UTC | 2024-10 | A203399-001 | AB | 1 | d06236e962d9… |
| 2024-08-13 05:28 UTC · 3 captures of this ZIP | 2024-08 | A203399-001 | AB | 1 | 79d66fd596c7… |
| 2024-07-13 05:37 UTC · 2 captures of this ZIP | 2024-07 | A203399-001 | AB | 1 | 301d65b070ca… |
| 2024-06-18 03:08 UTC · 5 captures of this ZIP | 2024-06 | A203399-001 | AB | 1 | 1e350fbaab3a… |
| 2024-05-31 18:47 UTC | 2024-05 | A203399-001 | AB | 1 | 8072bd15b7f6… |
| 2022-06-29 02:47 UTC · 2 captures of this ZIP | 2022-06 | A203399-001 | AB | 1 | 5c6f7cd8ea54… |
| 2022-04-08 23:34 UTC | 2022-04 | A203399-001 | AB | 1 | 5d02ea3f76ae… |
| 2022-04-04 05:41 UTC | 2022-04 | A203399-001 | AB | 1 | 4b0b4de00fa7… |
| 2019-12-13 00:20 UTC | 2019-12 | A203399-001 | AB | 1 | 74a2ff9319b5… |
| 2022-03-09 01:35 UTC | 2022-03 | A203399-001 | AB | 1 | bb7c543d1eb4… |
| 2021-12-28 21:50 UTC | 2021-12 | A203399-001 | AB | 1 | 782e0a99824c… |
| 2021-05-05 16:15 UTC · 3 captures of this ZIP | 2021-05 | A203399-001 | AB | 1 | 87673890dc5c… |
| 2021-03-12 10:30 UTC | 2021-03 | A203399-001 | AB | 1 | 5aa47cf7b7d7… |
| 2020-12-22 03:56 UTC | 2020-12 | A203399-001 | AB | 1 | 8869cabd3fbd… |
| 2020-11-12 02:37 UTC | 2020-11 | A203399-001 | AB | 1 | c0c555d07b60… |
| 2019-12-14 00:12 UTC | 2019-12 | A203399-001 | AB | 1 | 3f01610625f2… |
| 2019-09-15 20:21 UTC | 2019-09 | A203399-001 | AB | 1 | b00525d2431f… |
| 2019-07-19 19:46 UTC | 2019-07 | A203399-001 | AB | 1 | ea99ee380514… |
| 2024-03-16 18:09 UTC · 4 captures of this ZIP | 2024-03 | A203399-001 | AB | 1 | 6a51e52b5d6a… |
| 2024-02-18 07:12 UTC | 2024-02 | A203399-001 | AB | 1 | 1c564ffb4f44… |
| 2023-12-20 04:57 UTC | 2023-12 | A203399-001 | AB | 1 | ea1830bbd6c7… |
| 2023-11-28 05:40 UTC · 2 captures of this ZIP | 2023-11 | A203399-001 | AB | 1 | a72a2bbeb626… |
| 2023-10-25 00:34 UTC · 2 captures of this ZIP | 2023-10 | A203399-001 | AB | 1 | 9b2671bbb829… |
| 2023-07-15 15:27 UTC · 2 captures of this ZIP | 2023-07 | A203399-001 | AB | 1 | a67488948f0b… |
| 2023-06-13 01:57 UTC · 3 captures of this ZIP | 2023-06 | A203399-001 | AB | 1 | 3f0d92c62455… |
| 2023-05-13 08:27 UTC | 2023-05 | A203399-001 | AB | 1 | 053a50430f4f… |
| 2023-01-26 05:58 UTC | 2023-01 | A203399-001 | AB | 1 | 3bdfa0b2c4d7… |
| 2022-11-12 20:34 UTC · 5 captures of this ZIP | 2022-11 | A203399-001 | AB | 1 | 3a93d1ddd44b… |
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.
| Brand | Generic | Manufacturer | SPL set ID | Effective date | Available safety fields | Join |
|---|---|---|---|---|---|---|
| 47cd9df3-9511-24fe-e063-6394a90aaf1c | 5a0f574e-df84-4682-83eb-87272a7f5294 | 2026-01-07 | Warnings, Adverse reactions | 5a0f574e-df84-4682-83eb-87272a7f5294 | ||
| Metaxalone | METAXALONE | Amneal Pharmaceuticals LLC | 3aa9dba9-29b0-4520-a0f7-66d19d52c6bc | 2025-03-28 | Warnings, Adverse reactions | 65162-553 |
Adverse event summaries are temporarily unavailable. Other product information remains available.