FDA label 903ff4d2-c212-9e93-e053-2a95a90a66da

openFDA label record#

This page contains supplementary openFDA label data. For the canonical label presentation, use the corresponding DailyMed Structured Product Label.

Verified complete openFDA source JSON (canonical bytes are SHA-256 checked before publication)

SPL set ID: 22a8cbe9-3914-2881-e054-00144ff8d46c
SPL ID: 903ff4d2-c212-9e93-e053-2a95a90a66da
Version: 4
Effective date: 2019-08-16
Source export date: 2026-09-28
Source partition: 8
Source file: https://download.open.fda.gov/drug/label/drug-label-0008-of-0014.json.zip
Source object key: raw/openfda/drug-label/2026-09-28/ae3816359e336a5de4f44607730a3d12ceb61ffa012a132189ceda22541b38ee/drug-label-0008-of-0014.json.zip
Source manifest SHA-256: cd2e66336a5cd2223fa3995098fdbdb84c6a7ee5c0a4addb236ccb22dd1e6887
Import run: 20260929T050834Z
Imported at: 2026-09-29 05:51:01

Harmonized identifier links#

Every typed identifier imported from the complete openFDA harmonization object is paginated here; values are not reduced to a first match.

Harmonized identifiers page 1 of 1 · 2 matching rows.

Type, Scope, Identifier table
Type	Scope	Identifier	Source field
spl id		903ff4d2-c212-9e93-e053-2a95a90a66da	id
spl set id		22a8cbe9-3914-2881-e054-00144ff8d46c	set_id

Warnings cross-check#

openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.

Warnings sections page 1 of 1 · 1 matching rows.

warnings

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

Adverse reactions cross-check#

openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.

Adverse reactions sections page 1 of 1 · 1 matching rows.

adverse reactions

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.

Reported adverse events (FAERS/openFDA)#

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