My dad was in the hospital and was prescribed protonix 40mg twice a day because he was diagnosed with a hiatal hernia and gastritis,he was dismissed and continued with that prescription,but when he went to his follow up appointment with his Gastroenterologist he changed the prescription to 40mg protonix one a day ,he did good for 1 week but after 1 week his symptoms started to come back nausea, stomach pain,unable to eat because of the nausea, the same symptoms that lead him to the hospital. What can we do? Does he still need to be on protonix or does he need maybe 40mg twice a day?