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	Search Quick Order Form» Departments Vitamins Minerals Supplements Herbs Home & Grocery Diet & Fitness Body & Bath More Ways to Shop Brands A-Z Natural Remedies Children & Infants Women's Health Men's Health Seniors Free Catalog MotherNature.com's Catalog Is Here! Click Here to Get Your Free Copy Today. Newsletter Sign Up Weekly health news, sale announcements and coupons!		Library Home > Safetychecker by Drug Name > Magnesium Hydroxide MAGNESIUM HYDROXIDE Introduction Safetychecker summary Vitamin interactions References Visit The Healthy Living Bookshelf: 21 Online Health Books From Rodale Combination drugs: Advanced Formula Di-Gel® Tablets, Calcium Rich Rolaids®, Co-Magaldrox, Maalox Plus®, Maalox®, Mucaine®, Mylanta®, Tempo® Tablets Magnesium hydroxide is used as an antacid for short-term relief of stomach upset and as a laxative for short-term treatment of constipation. Magnesium hydroxide is available in nonprescription products alone and in combination with other nonprescription ingredients to relieve stomach upset. Safetychecker Summary for Magnesium Hydroxide (for details about the summarized interactions, read the full article) May be Beneficial: Depletion or interference—The medication may deplete or interfere with the absorption or function of the nutrient. Taking these nutrients may help replenish them. Folic Acid Iron* Check: Other—Before taking any of these supplements or eating any of these foods with your medication, read this article in full for details. Potassium Side effect reduction/prevention None known Supportive interaction None known Reduced drug absorption/bioavailability None known Adverse interaction None known Interactions with Dietary Supplements Folic acid Folic acid is needed by the body to utilize vitamin B12. Antacids, including magnesium hydroxide, inhibit folic acid absorption.1 People taking antacids are advised to supplement with folic acid. Iron Antacids, including magnesium hydroxide, may reduce the absorption of dietary iron. Iron supplements do not require stomach acid for absorption and one human study found that a magnesium hydroxide/aluminum hydroxide antacid did not decrease supplemental iron absorption.2 Potassium Individuals taking potassium-depleting diuretics and those who are otherwise at risk of developing potassium deficiency (such as people with chronic diarrhea or vomiting) may experience a fall in serum potassium levels if they take magnesium without taking additional potassium.3 This could lead to muscle cramps or, in individuals taking digoxin or digitalis, more serious problems such as cardiac arrhythmias. Individuals who have a history of potassium deficiency and those who are at risk of developing potassium deficiency, as well as people taking digoxin or digitalis, should consult a physician before taking magnesium-containing products. References: 1. Russell RM, Golner BB, Krasinski SD, et al. Effect of antacid and H2 receptor antagonists on the intestinal absorption of folic acid. J Lab Clin Med 1988;112:458–63. 2. O’Neil-Cutting MA, Crosby WH. The effect of antacids on the absorption of simultaneously ingested iron. JAMA 1986;255:1468–70. 3. Dyckner T, Wester PO. Ventricular extrasystoles and intracellular electrolytes before and after potassium and magnesium infusions in patients on diuretic treatment. Am Heart J 1979;97:12–8. Copyright © 2002 Healthnotes, Inc.  All rights reserved. www.healthnotes.com Please read the disclaimer about the limitations of the information provided here. Do NOT rely solely on the information in this article. Learn more about Healthnotes, the company. Learn more about the authors of Safetychecker. The information presented in Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over-the-counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2003.

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