What Causes Irritation In Abdomen While On Darolac And Oxflacin?

Hi - I had loosemotions 2 weeks ago and then the doctor gave me Darolac & Oxflacin tablets ( 10 each) which I took for a week until 21st march 2015 . The loosemotions stopped, but after I finished the tablets I am feeling slight irratation in the stomach . Is this due to the side effects of the tablets ? Also how only will this irration be coming and going ? Thanks Johnson