Hi, Thanks for asking. I understand your concern. Nexprofast is a proton pump inhibitor & it is given to treat acidity, heart burn & ulcers. Vizylac is a b complex preparation along with lactobacillus sporegens( that keeps healthy intestinal flora active )& it will help your irritable bowels & keeping your digestive system normal. I feel you need to get checked for your abdominal irritation ( bowel irritation or acidity problem itself )& get specific medication & life style changes to relieve these apart from the supportive medications you are taking. Please consult a gastroenterologist. Thanks.