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warnings
WARNINGS Antihistamines may cause excitability, especially in children. At dosages higher than the recommended dose, nervousness, dizziness, or sleeplessness may occur. Do not exceed recommended dosage. Methscopolamine nitrate may produce drowsiness or blurred vision. The patient should be cautioned regarding activities requiring mental alertness such as operating a motor vehicle or performing hazardous work while taking RespiVent™ DF. Co-administration of sildenafil citrate and other organic nitrates has been shown to potentiate the hypotension effects of nitrates. Co-administration of RespiVent™ DF and sildenafil citrate has not been studied. Therefore, the use of sildenafil citrate and RespiVent™ DF together is not recommended.
ADVERSE REACTIONS Adverse reactions include drowsiness, lassitude, nausea, giddiness, dryness of mouth, blurred vision, and increased irritability or excitement (especially in children). Antihistamines and anticholinergics may cause drowsiness, dizziness, blurred vision, and excessive dryness of the nose, throat, and mouth.