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What Causes Black Tarry Stool While On Methylprednisolone And Doxycycline Hyclate?

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Posted on Tue, 17 Jan 2017
Question: I am currently taking methyprednisone and doxycycoline hyc for a sinus infection. I am hep c positive and struggle with Psoriatic Arthritis
last night i woke with severe leg cramps dry mouth. yesterday while christmas shopping I had a beet red face and feel generally bad..but again I have a sinus infection..THIS MORNING.. i woke to a black Tarry stool nausea and dizziness..aching all over...should I be concerned over the stool or is it just a symptom of the meds...please help.. single Mom ..no Insurance!
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Answered by Dr. Shoaib Khan (3 hours later)
Brief Answer:
Black tarry stools are a side effect of doxycycline ma'am, no need to worry

Detailed Answer:
Hello ma'am and welcome.

Thank you for writing to us.

I have gone through your query with diligence and would like you to know that I am here to help. Black tarry stools are a side effect of doxycycline and you need not raise concern for the same, so please rest assured that this symptom shall subside soon after the medication is discontinued.

I wish you a speedy recovery, and please feel free to write to me for any further clarifications, I am always here to help.

Best wishes.
Note: For more detailed guidance, please consult an Internal Medicine Specialist, with your latest reports. Click here..
Above answer was peer-reviewed by : Dr. Raju A.T
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Dr. Shoaib Khan

General & Family Physician

Practicing since :2009

Answered : 9409 Questions

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What Causes Black Tarry Stool While On Methylprednisolone And Doxycycline Hyclate?

Brief Answer: Black tarry stools are a side effect of doxycycline ma'am, no need to worry Detailed Answer: Hello ma'am and welcome. Thank you for writing to us. I have gone through your query with diligence and would like you to know that I am here to help. Black tarry stools are a side effect of doxycycline and you need not raise concern for the same, so please rest assured that this symptom shall subside soon after the medication is discontinued. I wish you a speedy recovery, and please feel free to write to me for any further clarifications, I am always here to help. Best wishes.