I am a patient of severe asthma over last 20 years and formoterol fumerate-budesonide inhaler and tiotropium bromide 9 mcg, also am taking alfusin for enlarged prostate. I am suffering from regular severe epigastric pain in the right side of chest. The pain occurs around 4- 5pm in the evenings. Some days it starts even around 12 noon. My lunchtime is 2 pm. I have tried pantaprazole / rabeprazole, itopride, etc. But the severe pain comes back the next day. I also have the problem of constipation for which I am taking lactulose. What shd I take to combat the pain.