<p><strong>Seasonal allergic conjunctivitis</strong>: The usual dosage in adults and children 4 years and older is one drop in each eye twice daily that can be increased, if necessary to four times daily. If allergen exposure is anticipated Azelastine hydrochloride Eye drops, solution should be administered prophylactically, prior to the exposure.<br />
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<strong>Non-seasonal (perennial) allergic conjunctivitis</strong>: The usual dosage in adults and children 12 years and older is one drop in each eye twice daily that can be increased, if necessary to four times daily.<br />
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As safety and efficacy have been demonstrated in clinical trials for a period of up to 6 weeks, the duration of any course should be limited to a maximum of 6 weeks. Patients should be advised to contact their doctor if symptoms worsen or do not improve after 48 hours.</p>