Magnesium Salts(mag nee’ zee um)
Magnesia Magnesium Citrate
Citro-Mag (CAN), Citroma
Magnesium Hydroxide
Milk of Magnesia, Phillips’ Chewable, Pedia-Lax
Magnesium Oxide
Mag-Ox 400, Mag-200, Maox 420, Uro-Mag
PREGNANCY CATEGORY C
PREGNANCY CATEGORY A
(ANTACID)
PREGNANCY CATEGORY B
(LAXATIVE)
Drug Classes
Antacid
Laxative
Therapeutic Actions
Antacid (magnesium hydroxide, magnesium oxide): Neutralizes or reduces gastric acidity, resulting in an increase in the pH of the stomach and duodenal bulb and inhibition of the proteolytic activity of pepsin. Laxative (magnesium citrate, magnesium hydroxide): Attracts and retains water in intestinal lumen and distends bowel; causes the duodenal secretion of cholecystokinin, which stimulates fluid secretion and intestinal motility.
Indications
Symptomatic relief of upset stomach associated with hyperacidity
Hyperacidity associated with peptic ulcer, gastritis, peptic esophagitis, gastric hyperacidity, and hiatal hernia
Prophylaxis of GI bleeding, stress ulcers, aspiration pneumonia
Short-term relief of constipation; evacuation of the colon for rectal and bowel examination
Contraindications and Cautions
Contraindicated with allergy to magnesium products.
Use cautiously with renal insufficiency, pregnancy, lactation.
Available Forms
Tablets—311 (chewable), 400, 420, 500 mg; capsules—140 mg; liquid—various
Dosages
Adults
Magnesium citrate
Laxative: 195–300 mL liquid PO or in divided doses with a full glass of water.
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