My father's age is 65 and weighs 75 kg. He is a gastric patient & have been taking zinetac300 for past couple of patients. Also he is prone to allergies from certain medicines. For blood pressure, he is taking lodoz 2.5 too. But two weeks ago, he changed the medicine from zinetac 300 to pantocid l since he was having high gastric issues. But since last saturday, at late night from 2 am till 4 am, he is having right side chest pain in which the gastric issues from stomach is coming upwards that is causing him chest pain. We have consulted gastroenterologist and under his prescriptions, my father is having pantocid l once daily before breakfast and ganaton 50 mg before breakfast, lunch,dinner& mucaine gel after breakfast, lunch,dinner from this tuesday. But again today midnight, the same upward chest pain. Though he is not having any digestion issues but this chest pain is not getting cured. Kindly guide me doctor what medicines & options I should opt for now to get this upward chest pain of my father being cured.