Clinical-Differences-and-Mechanisms-of-Action-of-Three-Platforms–Allergan-Orasis-and-Novartis-Drops Clinical Differences and Mechanisms of Action of Three Platforms: Allergan, Orasis and Novartis Drops – John Berdahl, MD Previous image Next image Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *CommentName* Email* Website Save my name, email, and site URL in my browser for next time I post a comment. Notify me of new posts by email.