FDA label 66c32420-3e02-aee8-e053-2a91aa0a84b5

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: 54686520-506f-7765-7220-436f736d6963
SPL ID: 66c32420-3e02-aee8-e053-2a91aa0a84b5
Version: 4
Effective date: 2018-03-06
Source export date: 2026-09-28
Source partition: 13
Source file: https://download.open.fda.gov/drug/label/drug-label-0013-of-0014.json.zip
Source object key: raw/openfda/drug-label/2026-09-28/e78bf8aa9f90ab13e640d254dfbd4fe5bfeca4995ec5f9d51bce3356e249cab7/drug-label-0013-of-0014.json.zip
Source manifest SHA-256: cd2e66336a5cd2223fa3995098fdbdb84c6a7ee5c0a4addb236ccb22dd1e6887
Import run: 20260929T050834Z
Imported at: 2026-09-29 06:31:10

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		66c32420-3e02-aee8-e053-2a91aa0a84b5	id
spl set id		54686520-506f-7765-7220-436f736d6963	set_id

Warnings cross-check#

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Warnings sections page 1 of 1 · 1 matching rows.

warnings

WARNINGS Children: Overdosage of antihistamines, particularly in infants and children, may produce hallucinations, central nervous system depression, convulsions and death. Antihistamines may diminish mental alertness; conversely, particularly in the young child, they may occasionally produce excitation. CNS Depressants: Antihistamines may have additive effects with alcohol and other CNS depressants, e.g., hypnotics, sedatives, tranquilizers, antianxiety agents. Activities Requiring Mental Alertness: Patients should be warned about engaging in activities requiring mental alertness and motor coordination, such as driving a car or operating machinery. Antihistamines are more likely to cause dizziness, sedation and hypotension in elderly patients.

Adverse reactions cross-check#

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

adverse reactions

ADVERSE REACTIONS Adverse reactions which have been reported with the use of antihistamines are as follows: Central Nervous System: Sedation and sleepiness (often transient), dizziness, disturbed coordination, confusion, restlessness, excitation, nervousness, tremor, irritability, insomnia, paresthesias, neuritis, convulsions, euphoria, hallucinations, hysteria, faintness. Integumentary: Allergic manifestation of rash and edema, excessive perspiration, urticaria, photosensitivity. Special Senses: Acute labyrinthitis, blurred vision, diplopia, vertigo, tinnitus. Cardiovascular: Hypotension, palpitation, tachycardia, extrasystoles, anaphylactic shock. Hematologic: Hemolytic anemia, leukopenia, agranulocytosis, thrombocytopenia. Digestive System: Dryness of mouth, epigastric distress, anorexia, nausea, vomiting, diarrhea, constipation, jaundice. Genitourinary: Urinary frequency, difficult urination, urinary retention, early menses. Respiratory: Dryness of nose and throat, thickening of bronchial secretions, tightness of chest and wheezing, nasal stuffiness. Miscellaneous: Fatigue, chills, headache, increased appetite/weight gain.

Reported adverse events (FAERS/openFDA)#

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