Answer
It is a synthetic form of active vitamin D that selectively activates vitamin D receptors. It is prescribed for secondary hyperparathyroidism rather than routine vitamin D supplementation.
Sources for this answer
- Zemplar Soft Capsules 2 mcgemc · SmPC Current selected SmPC · Version 9
- Zemplar 5 microgram/ml Solution for Injectionemc · SmPC Current selected SmPC · Version 24