Symptoms of overdose (hypercalcemia): anorexia, thirst, polyuria, muscle weakness, nausea, vomiting, constipation, abdominal pain, fatigue, bone pain, mental disorders, nephrocalcinosis, urolithiasis and, in severe cases, cardiac arrhythmias. With prolonged use of excessive doses (over 2500 mg of calcium) - kidney damage, calcification of soft tissues.
In case of signs of overdose, it is necessary to stop taking calcium and vitamin D, as well as thiazide diuretics and cardiac glycosides, and consult a doctor.
Treatment: gastric lavage, replenishment of fluid loss, use of loop diuretics (eg, furosemide), glucocorticosteroids, calcitonin, bisphosphonates.
It is necessary to control the content of electrolytes in blood plasma, the function of the kidneys and diuresis.
In severe cases, it is necessary to measure central venous pressure (CVP) and monitor the electrocardiogram (ECG).