FDA.reportPublic FDA data

FDA label 8ce2a8df-6efd-4819-90d2-3e2b980c8dc9

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
b7e88fa7-fa92-48be-86ab-7e375d710251
SPL ID
8ce2a8df-6efd-4819-90d2-3e2b980c8dc9
Version
4
Effective date
2015-04-17
Source export date
2026-09-28
Source partition
6
Source file
https://download.open.fda.gov/drug/label/drug-label-0006-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-09-28/e0861bcde1444ef952820955caafc6f3fd29783e5ade07a13d933aa3336b399f/drug-label-0006-of-0014.json.zip
Source manifest SHA-256
cd2e66336a5cd2223fa3995098fdbdb84c6a7ee5c0a4addb236ccb22dd1e6887
Import run
20260929T050834Z
Imported at
2026-09-29 05:41:19

Warnings cross-check#

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Warnings sections page 1 of 1 · 1 matching rows.

warnings

WARNINGS Antihistamines should be used with considerable caution in patients with: narrow angle glaucoma, stenosing peptic ulcer, pyloroduodenal obstruction, symptomatic prostatic hypertrophy, and bladder neck obstruction. Use with CNS Depressants Clemastine has additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, etc.). Use in Activities Requiring Mental Alertness Patients should be warned about engaging in activities requiring mental alertness such as driving a car or operating appliances, machinery, etc. Use in the Elderly (approximately 60 years or older) 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 The most frequent adverse reactions are italicized: Nervous System Sedation, sleepiness, dizziness, disturbed coordination , fatigue, confusion, restlessness, excitation, nervousness, tremor, irritability, insomnia, euphoria, paresthesia, blurred vision, diplopia, vertigo, tinnitus, acute labyrinthitis, hysteria, neuritis, convulsions. Gastrointestinal System Epigastric distress , anorexia, nausea, vomiting, diarrhea, constipation. Respiratory System Thickening of bronchial secretions , tightness of chest and wheezing, nasal stuffiness. Cardiovascular System Hypotension, headache, palpitations, tachycardia, extrasystoles. Hematologic System Hemolytic anemia, thrombocytopenia, agranulocytosis. Genitourinary System Urinary frequency, difficult urination, urinary retention, early menses. General Urticaria, drug rash, anaphylactic shock, photosensitivity, excessive perspiration, chills, dryness of mouth, nose and throat.

Reported adverse events (FAERS/openFDA)#

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