A short course of high-dose
vitamin D taken exactly as your doctor prescribed is very unlikely to harm healthy kidneys, though very high doses over a long period can raise
calcium levels.
Next Steps
Ask your prescribing doctor to confirm the total course length, and get your
calcium and
kidney function checked once you finish it.
Health Tips
Get checked urgently if you develop nausea, vomiting, excessive thirst, or reduced urination.