Drowsiness can be a symptom of overdosage occurring from administration of 50mg Cetirizine as a single dose. Overdosage in children may produce agitation. In case of massive overdosage, gastric lavage should be performed together with the usual supportive measures. To date, there is no specific antidote.
Do not prescribe to patients with a history of hypersensitivity to any of the components of Cetirizine and lactating women since Cetirizine is excreted in breast milk.
Studies in health volunteer at 20 to 25mg/day have not revealed effects on alertness or reaction time.However, patients are advised not to exceed the recommended dose of driving or operating machinery.
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