Hi thanks for asking question. You have chronic constipation since long duration.You have prescribed correct prescription mainly rifagut as local antibiotic and cremadiet is fiber supplement. You have normal endoscopy .so mostly you have functional constipation. You have to do regular exercise daily like 30 minute running.Fiber rich diet taken more like apple, banana , whole grain , wheat bran etc. Avoid broccoli, cabbage and cauliflower like gas forming food. Glutamine and digestive enzyme supplement also useful. Fennel in tea s useful. Avoid smoking. Avoid alcohol if habit. Avoid stress. Mostly with these measures you will get benefit. Wish you good health. Dr.parth