I just finished a week of macrobid on wednesday night. during which I had a lot of abdominal pain , nausea . Now I still have nausea a black hard stools . And feels like a knot below my right rib. During macrobid my stools were all different colors, green, reddish brown , brown, and now black. When I wake up after hard night trying to sleep, a lot of black stinky stool. Now its hard to lay down the knot feeling below rib makes me sick and nauseous. Is this normal after macrobid? I thinky I had gallbladder issues before but this is lasting almost all day.
Hello! Thank you for the query. If your stool is black like a tar and has strange smell (not like regular stool, more like digested iron) this can indicate bleeding from peptic ulcer. Macro bid is mild antibiotic which like every medicine can irritate digestive tract. However, bleeding from peptic ulcers seems to be unrelated. Upper right abdominal pain can be also caused by gallstones, however usually it radiates to the back, gives nausea and vomiting. It appears after a meal. I suggest you to visit your doctor as soon as possible. Bleeding should be ruled out (blood work and upper GI endoscopy should be done). Abdominal ultrasound should be performed in case of gallstones possibility. Hope this will help. Regards.