openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.
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 Bladder neck obstruction Use in Children In infants and children, especially, antihistamines in overdosage may cause hallucinations, convulsions, or death. As in adults, antihistamines may diminish mental alertness in children. In the young child, particularly, they may produce excitation. Use in Pregnancy: Experience with this drug in pregnant women is inadequate to determine whether there exists a potential for harm to the developing fetus. Use with CNS Depressants: Dexchlorpheniramine Maleate, USP 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.