A 49-year-old female asked:
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Pain in lower left abdomen, lower bck, bright urine. History of auto immune diseases, lupus, ra, raynauds, on rituxan (rituximab) .Urinalysis no bladder inf. ?

1 doctor answer
Dr. Steven Machtinger
43 years experience in Allergy and Immunology
Drug side effect: You may only be constipated. Rituxan (rituximab) is a monoclonal antibody used for the treatment of rheumatoid arthritis (ra). Abdominal pain is a common side-effect of this drug. Bowel obstruction and perforation have been reported much less frequently but can be much more serious. Persistent abdominal pain is a symptom you should report to the physician who prescribed rituxan.
Answered on Mar 23, 2020
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