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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Alcaftadine trial used this concentration of drug:
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The correct answer is  * ALCAFTADINE is a H1 receptor antagonist, and can be used for allergic conjunctivitis* The trial done for alcaftadine used 0.25% solution.* The trial states: "When Alcaftadine was tested against placebo and olopatadine, only Alcaftadine 0.25% was shown to have a clinically significant reduction in conjunctival redness scores 7 and 15 minutes after administration'