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Magnesium - Side Effects of Using it
The amount of magnesium provided by a product varies with the magnesium salt (formulation) contained in the product. The table above lists the magnesium salts by the amount of magnesium contained in the formulation .
Type of Drug:
Electrolyte. Dietary supplement.
How the Drug Works:
Magnesium is needed for normal enzyme activity, muscle contraction, and nerve conduction.
Uses:
To reverse or prevent magnesium deficiency. Magnesium deficiency may occur due to prolongod diarrhea, vomiting, chronic alcoholism, malabsorption syndromos, homodialysis, kidney disease, electrolyte or diuretic use.
Unlabeled Uses: Occasionally doctors may prescribe pyridoxine/magnesium oxide combinations to prevent recurrence of calcium oxalate kidney stones.
Precautions:
Use with caution in the following situations: Kidney disease.
Drug Interactions:
Tell your doctor or pharmacist if you are taking or planning to take any over-the-counter or prescription medications or dietary supplements with magnesium. Doses of one or both drugs may need to be modified or a different drug may need to be prescribed. The following drugs and drug classes interact with magnesium:
-
Aminoquinolones (eg, chloroquine)
-
Fluoroquinolo ones (eg, ciprofloxacin)
-
Nitrofurantoin (eg, maerodantin)
-
Penicillamine (eg, guprimine)
- Tetracyclines (eg, oxytetracycline)
Doses:
Type |
Generic Name |
Supplied As |
Generic Available |
otc |
Magnesium Amino Acid Chelate |
|
|
|
Chelated Magnesium, Magnesium AA |
Tablets: 100 mg |
No |
otc |
Magnesium Carbonate |
|
|
|
Mag-Garb |
Capsules: 72 mg |
No |
otc |
Magnesium Chloride Hexahydrate |
|
|
|
Mag-SR, Slow-Mag |
Tablets, sustained release: 64 mg |
No |
otc |
Magnesium Citrate |
Tablets: 100 mg |
Yes |
otc |
Magnesium Gluconate Dihydrate |
|
|
|
Almora, Magonate |
Tablets: 27 mg |
Yes |
|
Magtrate |
Tablets: 29 mg |
No |
|
Magonate |
Liquid: 54 mg/5 mL |
No |
|
Magonate Natal |
Liquid: 3.52 mg/ml |
No |
otc |
Magnesium Lactate |
|
|
|
Mag-Tab SR |
Tablets, sustained release: 84 mg |
No |
otc |
Magnesium Oxide |
|
|
|
Mag-Ox 400 |
Tablets: 241.3 mg |
Yes |
|
Capsules: 84.5 mg |
No |
Side Effects:
Every drug is capable of producing side effects. Many magnesium users experience no, or minor, side effects. The frequency and severity of side effects depend on many factors including dose, duration of therapy and individual susceptibility. Possible side effects at high doses include diarrhea.
Guidelines for Use:
-
Dosage will be individualized.
-
Excessive doses may cause diarrhea and gastrointestinal irritation.
-
Recommended Dietary Allowances (RDAs) Adult males: 350 to 400 mg Adult females: 280 to 300 mg
-
Swallow sustained-release tablets whole. Do not crush or chew.
-
Common sources of magnesium - Bananas, avocados, roasted peanuts, legumes, unmilled grains, green vegetables.
-
Magnesium-containing antacids may also be used as dietary supplements. See the Antacids monograph in the Gastrointestinal Drugs chapter.
-
Store at controlled room temperature (59° to 86°F) in a dry place. Keep out of the reach of children.