... form, it is used to treat allergic conjunctivitis,or the itchy red eyes caused by allergies. In its oral ... gain, dry mouth, irritability, and increased nosebleeds.The drug is marketed as ophthalmic solutions under the brand names Zaditor/Zaditen (Novartis), Alaway ( ... generic version of Zaditor and is selling as Over-The-Counter is also available from Unimed Pharmaceutical INC.[ ketotifen fumarate