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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Suffering From Abdominal Pain And Nausea, Feel Knot Below Rib. Is This Normal After Macrobid?

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.
Sat, 30 Mar 2013
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General Surgeon,  's  Response
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. Macrobid 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.
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Naturopathy & Yoga Specialist,  Dr. Ambika Murali Krishnan's  Response
hi
macrobid is a nitrofurantoin monohydrate or macrocrystals capsule which is an antibiotic medicine and as it has inactive ingredients which causes allergic reactions to body. so your symptoms are due to the side effects of macrobid medicine and it is contra indicated in cases of liver and gall bladder diseases so consult your Dr for further evaluations and for the treatments.
take care.
wish you speedy recovery.
bye.
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Suffering From Abdominal Pain And Nausea, Feel Knot Below Rib. Is This Normal After Macrobid?

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. Macrobid 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.