Calcijex Injection (Calcitrol) Drug Information: Warnings and Precautions - Prescribing Information at RxList
WARNINGS
Since calcitriol is the most potent metabolite of vitamin D available, prescription-based doses of vitamin D and its derivatives should be withheld or used with caution during treatment to avoid the risk of hypercalcemia.A non-aluminum phosphate-binding compound should be used to control serum phosphorus levels in patients undergoing dialysis.
Overdosage of any form of vitamin D is dangerous (see also OVERDOSAGE).