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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Severe Vomiting And Diarrhea After Taking Magnesium Oxide 2200 Mg?

I have a severe magnesium defeciency. I have been taking 2200 mg daily of magnesium oxide. Is there not a way to find out why I m defecient or to find out where it is going daily. Severe reaction of vomiting, diarreiha, confusion, loss of motor skills and cognitive skills if I allow dosage to be lowered.
Thu, 28 Apr 2016
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General & Family Physician,  's  Response
Hi & Welcome.
It is due to over dosage of Magnesium oxide.
The usual adult dose for 'hypomagnesemia' is 400-800 mg of Magnesium oxide given orally once a day.
Since it can also act as an 'osmotic laxative', the symptoms of severe vomiting and diarrhea, confusion, loss of motor & cognitive skills seem to be due to overdosage of this medication.
I advise you to consult your treating doctor immediately for quick assessment of dehydration and its treatment. What you need at this stage after correction of dehydration is to lower the dose of Magnesium oxide.
You should not take more than 2 tablets in a 24-hour period or use for more than 2 weeks without checking with your doctor.
Lab tests, including magnesium levels, may be performed while you use magnesium oxide. These tests may be used to monitor your condition or check for side effects.
Hope the suggestions would be of great help to you.
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What Causes Severe Vomiting And Diarrhea After Taking Magnesium Oxide 2200 Mg?

Hi & Welcome. It is due to over dosage of Magnesium oxide. The usual adult dose for hypomagnesemia is 400-800 mg of Magnesium oxide given orally once a day. Since it can also act as an osmotic laxative , the symptoms of severe vomiting and diarrhea, confusion, loss of motor & cognitive skills seem to be due to overdosage of this medication. I advise you to consult your treating doctor immediately for quick assessment of dehydration and its treatment. What you need at this stage after correction of dehydration is to lower the dose of Magnesium oxide. You should not take more than 2 tablets in a 24-hour period or use for more than 2 weeks without checking with your doctor. Lab tests, including magnesium levels, may be performed while you use magnesium oxide. These tests may be used to monitor your condition or check for side effects. Hope the suggestions would be of great help to you.