Home FDA labels 157e3ac7-c0cd-4b5c-bafa-ec29eb0af48c FDA label 157e3ac7-c0cd-4b5c-bafa-ec29eb0af48c 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 ae233e6f-15b4-4e76-914e-b3e04fffcfa2
SPL ID 157e3ac7-c0cd-4b5c-bafa-ec29eb0af48c
Version 7
Effective date 2011-02-04
Source export date 2026-09-28
Source partition 1
Source file https://download.open.fda.gov/drug/label/drug-label-0001-of-0014.json.zip
Source object key raw/openfda/drug-label/2026-09-28/9c7783846d422acb0c9e59457606951c785a7d28cc631c8cc4839d0dc7c55f39/drug-label-0001-of-0014.json.zip
Source manifest SHA-256 cd2e66336a5cd2223fa3995098fdbdb84c6a7ee5c0a4addb236ccb22dd1e6887
Import run 20260929T050834Z
Imported at 2026-09-29 05:13:23 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.
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 Guaifenesin is well tolerated and has a wide margin of safety. Side effects have been generally mild and infrequent. Nausea and vomiting are the side effects that occur most commonly. Dizziness, headache and rash (including urticaria) have been reported rarely.
Reported adverse events (FAERS/openFDA)# Adverse event summaries are temporarily unavailable. Other product information remains available.