Magnesium can decrease the absorption and effectiveness of a number of medications, including several common antibiotics, certain statin drugs, and a drug prescribed for atrial fibrillation. On the other hand, one form of magnesium may increase the absorption of certain anti-diabetes drugs, potentially affecting blood sugar control. In some cases, magnesium can still be taken, but only several hours before or after taking these drugs.
Be aware that these interactions apply not only to magnesium in supplements but also in over-the-counter antacids and laxatives.
In addition, certain medications can deplete levels of magnesium in the body, or interfere with magnesium's laxative effects.
For details, see the Cautions and Concerns section of the Magnesium Supplements Review >>
INSTANT ACCESS TO REVIEW OVER 1000 PRODUCTS!
Also see these related CL Answers:
What is the benefit of magnesium orotate compared to other forms of magnesium? >>
When taking a statin drug like Lipitor or Crestor, are there supplements I should avoid, or be taking? >>
Which is the best form of magnesium to take - one that contains the most magnesium and is best absorbed? >>
How can the Recommended Daily Allowance (RDA) for magnesium be higher than the Upper Tolerable Intake Level (UL)? That is, how can an amount which is healthful also put you at risk for harm? >>
Is it important to take calcium and magnesium together? >>
Is it true that I should not keep magnesium supplements in a daily pill pack mixed with other supplements and medicines? >>
Help! How do I know how much magnesium I am actually getting from my supplement? The label says it contains 500 mg of magnesium "as magnesium citrate" -- but how much of that is magnesium and how much is citrate? >>
Is there an accurate test for magnesium deficiency? >>
Which supplements can cause diarrhea? >>