Home FDA labels d61045b0-39e0-e152-e053-2995a90ac32d FDA label d61045b0-39e0-e152-e053-2995a90ac32d 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 4faadbea-8914-6914-e054-00144ff8d46c
SPL ID d61045b0-39e0-e152-e053-2995a90ac32d
Version 4
Effective date 2022-01-20
Source export date 2026-08-01
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/2026-08-01/206e0852f7011b53c21719ec5c68ac6752381d0fcd1d348f7428adad64429e89/drug-label-0008-of-0014.json.zip
Source manifest SHA-256 bdd1454d0606b622b70458a306b8a10d8a8787db06fd9f46e69c7f7a4524b630
Import run 20260801T225920Z
Imported at 2026-08-01 23:17:40 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.
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 tablets 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.