This is a generic antihistamine drug found in many over-the-counter allergy drops such as Opcon-A and Naphcon-A. While effective, this antihistamine is not as powerful as more modern drugs like ketotifen (found in Alaway and Zaditor) and Pataday.
Timothy Root, MD
Dr. Timothy Root is a practicing ophthalmologist and cataract surgeon in Daytona Beach, Florida. His books, video lectures, and training resources can be found at www.TimRoot.com
