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Antibiotics and Magnesium

Discussion in 'Detox: Methylation; B12; Glutathione; Chelation' started by skwag, Sep 2, 2014.

  1. skwag

    skwag Senior Member

    A short story then some questions.

    I took a spill about a month ago. I wound up with a good sized laceration that required stitches. The wound was dirty so it got cleaned, I got a tetanus shot, and I was put on oral antibiotics ( keflex ). About halfway through the week long course of antibiotics, my gut decided it was not happy. I finished the prescription anyway. I haven't been feeling great since. I still have some stomach issues, but my main concern is the muscle tension and muscle pain.

    A week ago, I had a little episode where I felt light headed and had an elevated pulse. Over a couple hours I took 800mg of potassium with no relief. The next day I tried some extra calcium without effect. That night I tried some Magnesium malate. Within a half hour I felt my back beginning to relax. I continued taking about 400mg extra a day and I felt great for two days. Now the muscle tension is back. The following article says antibiotics can deplete magnesium

    but I can't find any other information on the issue.

    The questions:
    1) Does anyone know anything about this "antibiotics deplete magnesium" claim?

    2) How much magnesium can I take? I'm at about 650 mg now.

    Last edited: Sep 2, 2014
  2. Ema

    Ema Senior Member

    Midwest USA
    It is true that some antibiotics can cause low magnesium by blocking resorption of magnesium in the kidneys at the loop of Henle. However, I've only seen mention of the aminoglycosides doing this (which doesn't mean for sure that others don't) and Keflex is a cephalosporin.

    If your kidneys are in good working order, typically one can take magnesium to bowel tolerance without issue. The rest is simply excreted.
    skwag likes this.
  3. Gingergrrl

    Gingergrrl Senior Member

    The fluoroquinolone antibiotics also deplete your body of magnesium. I don't know about keflex though.

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