Stop or review calcium supplements and antacids with a clinician
Review vitamin D supplements with a clinician
Increase oral fluid intake if allowed by your doctor
Treat the underlying cause of the high calcium
Reduce high-dose calcium intake from diet and supplements
Increase physical activity if safe and approved
Avoid dehydration
Limit prolonged bed rest
Use prescribed medications such as bisphosphonates if directed
Use calcitonin if prescribed
Use IV fluids in severe cases under medical care
Use loop diuretics only if prescribed after rehydration
Seek urgent medical care for severe symptoms or very high calcium levels