Elemental Calcium 333 mg from a complex of calcium carbonate, calcium citrate, calcium fumarate, calcium malate, calcium succinate
Magnesium 167 mg from a complex of magnesium oxide, magnesium citrate, magnesium fumarate, magnesium malate, magnesium succinate
Drug Interactions: Calcium and magnesium can interfere with tetracycline antibiotics and calcium channel blockers. Consult your physician before use if you are taking any thiazide diuretics, as these can cause extremely high (potentially toxic) levels of calcium in the body. Magnesium can increase levels of diuretics in the body.
Nutrient Depletions: Excess calcium can impair the absorption of the mineral iron. Calcium and/or magnesium may interact with or be depleted by corticosteroids, bronchodilators, anti-osteoporotics, cholesterol-reducing medications, anti-gout medications, anti-fungals, immunosuppressants, anti-malarial drugs, anti-tuberculosis drugs, oral contraceptives, biguanides, sulfonylureas, and sulfonamides. Foods high in phosphorus (animal protein and soft drinks) promote urinary loss of calcium. High consumption of caffeine, and excess dietary fat and fibre can inhibit calcium absorption.
Supportive Interactions: Vitamin D enhances calcium absorption. Ensure that you are getting at least 400 IU of Vitamin D each day for optimal calcium absorption. Garlic supplements along with calcium may help reduce high blood pressure.
Warnings and Precautions: Some people may experience diarrhea.
Toxicity, Adverse Warnings and Side Effects: Calcium carbonate may cause symptoms of gas, bloating, or constipation. If this occurs, switch to calcium citrate. Excess calcium can contribute to the development of kidneys stones, and may cause calcium deposits in the body. If you experience abdominal pain, appetite loss, diarrhea, irregular heartbeat, mood or mental changes, nausea, tiredness, weakness, discomfort urinating, or vomiting, discontinue use and contact a physician.