Calcium carbonate when taken as an antacid alters the absorption and excretion of a wide range of drugs. Please refer to a drug interaction guide for specific concerns. Only those interactions encountered with oral administration of calcium supplements will be included in this section. ZINC
Calcium supplementation has been shown in some studies to increase faecal losses of zinc (McKenna et al 1997) — ensure adequate zinc intake and monitor for signs and symptoms of deficiency.
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