Ovac 20mg drug is one of the drugs used to treat a number of diseases of the gastrointestinal tract such as: Gastroesophageal reflux disease, peptic ulcer disease, Zollinger - Ellison syndrome. To better understand what Ovac 20 is? What diseases does Ovac 20 treat? What are the harmful interactions of Ovac 20? What is the correct way to drink? What characteristics should be kept in mind when using the drug? The following article will help you better understand Ovac 20.