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Doses greater than 2 g elemental calcium per day, particularly in susceptible individuals (i.e., patients with kidney failure), may cause high levels of calcium in the urine and lead to kidney stones, resulting in kidney damage.
Hypercalcemia is also possible, particularly in patients with kidney failure or in those who are also taking vitamin D. Mild hypercalcemia may be asymptomatic or manifest as constipation, anorexia, nausea, and vomiting, with mental changes such as confusion, delirium, stupor (stunned state), and coma becoming evident as the degree of hypercalcemia increases.
If the patient has taken more than the recommended dosage, consult a doctor.
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