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Gastroenterology (Expert Forum)
Constipation, Laxatives and Iron Deficiency - Help!
Answered by
Kevin Pho, MD - Internal Medicine
Kevin, M.D.
Boston - MA
This forum is for questions regarding Gastroenterology issues such as Acid Reflux (GERD), Barretts Esophagus, Colitis, Colon/Bowel Disorders, Crohn's Disease, Diverticulitis/Diverticulosis, Digestive Disorders, IBS, Stomach Pain.
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Constipation, Laxatives and Iron Deficiency - Help!
by alexandria, Jan 29, 2004 12:00AM
I am a 36-year old female with a history of severe constipation related IBS, redundant sigmoid colon, gastritis and asthma. I've been struggling with severe constipation for the past year (probably due to abdominal adhesions from a female surgery a year ago). Over the past 8 months, I've been on a number of laxatives to get things going (Miralax, Zelnorm, Lactulose, Senekot, etc) and have had difficulty finding the right dose to prevent loose stools. Since December, I've also been struggling with episodes of diarrhea when the dosage has been too much. Recently, an IBS specialist put me on a GI cocktail consisting of 1/2 capful of Citricil, 1 tablespoon of milk of magnesia and 1-2 capfulls of Miralax per day. This keeps things moving but I'm having trouble finding the right combination to prevent loose stools and diarrhea. Since December, I began experiencing tiredness, very pale complexion and shortness of breath. The shortness of breath is common this time of year as I have asthma and allergies and take daily inhalers (Serevent, Pulmicort and Singulair). I recently had a blood test for iron and it turned out that I'm iron deficient. Doctor has prescribed Slow-FE for 6 weeks. Here are my questions: Could the iron defiency have been caused simply by the use of laxatives, or by the diarrhea caused by the laxatives? I'm concerned that I need to stay on the laxatives for normal function and that laxatives may be causing an absoption problem. If so, can this be fixed? Also, can mild iron deficiency be corrected while still using laxatives? Also want to know if shortness of breath is a symptom of iron deficiency. As far as diet, I was advised not to take vitamens with iron to avoid constipation. I've also avoided iron rich foods such as red meat, eggs and broccoli because it upsets my IBS. Anything I can do increase my dietary iron without upsetting the IBS? Final question: The phamacist told me that the Slow-FE can cause GI upset and constipation. If you have a patient who is iron deficient and has severe constipation, what do you do? Increase the laxatives? Please note: I've had siginificant tests for constipation including blood work, thyroid levels, abdominal x-ray, CT scan, colonscopy, Upper GI, small bowel follow-through, lower GI and colon transit study. All were negative for serious problems.
Doctor's Answer
by Kevin Pho, MD, Jan 30, 2004 12:00AM
, Jan 30, 2004 12:00AM
To answer your questions:
1) I am not aware of laxatives causing iron deficiency. Diarrhea itself shouldn't cause iron deficiency, unless there is a component of blood loss.
2) Yes, with the appropriate treatment (i.e. iron supplements), the deficiency should be able to be corrected while using laxatives.
3) Shortness of breath may be a symptom of iron deficiency if you are deficient enough to cause anemia.
4) It's a difficult balancing question. You are not eating enough iron-rich foods causing iron deficiency, and by eating these foods, it upsets your IBS. Supplements would be a solution to this problem. I would also consider the evaluation of a nutritionist for further information.
5) You have already had significant studies investigating your constipation. Optimizing laxative use may be a solution. I would also consider a second GI opinion. If the constipation continues despite all the negative tests, there are surigcal options to treat constipation.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Thanks,
Kevin, M.D.
1) I am not aware of laxatives causing iron deficiency. Diarrhea itself shouldn't cause iron deficiency, unless there is a component of blood loss.
2) Yes, with the appropriate treatment (i.e. iron supplements), the deficiency should be able to be corrected while using laxatives.
3) Shortness of breath may be a symptom of iron deficiency if you are deficient enough to cause anemia.
4) It's a difficult balancing question. You are not eating enough iron-rich foods causing iron deficiency, and by eating these foods, it upsets your IBS. Supplements would be a solution to this problem. I would also consider the evaluation of a nutritionist for further information.
5) You have already had significant studies investigating your constipation. Optimizing laxative use may be a solution. I would also consider a second GI opinion. If the constipation continues despite all the negative tests, there are surigcal options to treat constipation.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Thanks,
Kevin, M.D.
this could cause constipation