Is 500 mg of IV Magnesium Sulfate risky?

Published: August 24, 2013
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Does it pose any risk if my doctor gives an IV with Magnesium Sulfate of 500mg each week for 8 weeks? I don't get it why the pharmacy mentioned to me that it's a dangerous thing to do. I have had fibromyalgia for 2 years now and one symptom is fatigue and muscle spasm and twitching. Thanks for any advice you can give.

Answer

Unless you have kidney failure, and generally even then, this small dose is very safe. The magnesium is usually given at a higher dose 1000-2000 mg (1-2 gm) over an hour. Replacing the deficits of low magnesium can take over 24,000 mg. So I don't know why your pharmacist would say that. Ask them. I find giving 1000-2000 mg magnesium plus other nutrients in a liter of salt water (normal saline) to be very helpful in CFS and Fibro.

L&B,
Dr T

Jacob Teitelbaum, MD

is one of the world's leading integrative medical authorities on fibromyalgia and chronic fatigue. He is the lead author of four research studies on their treatments, and has published numerous health & wellness books, including the bestseller on fibromyalgia and chronic fatigue syndrome From Fatigued to Fantastic! and his newer The Fatigue and Fibromyalgia Solution.  Dr. Teitelbaum is one of the most frequently quoted fibromyalgia experts in the world and appears often as a guest on news and talk shows nationwide including Good Morning America, The Dr. Oz Show, Oprah & Friends, CNN, and Fox News Health. 

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