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Question: Are there drug interactions with magnesium supplements?
Answer: 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.