During the marketing of Clarityne products, alopecia, anaphylaxis, abnormal hepatic function, tachycardia and palpitation have been reported rarely.
Similarly, the incidence of adverse effects associated with syrup has been comparable to that of placebo. In controlled paediatric clinical trials, the incidence of treatment-related headache, sedation and nervousness, which were rarely reported events, was similar to that of placebo.
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