Medical Professional Home Page About Rocaltrol About Chronic Kidney Disease hypoparathyroidism Important Safety Information
What is hypoparathyroidism?
Hypoparathyroidism (low blood levels of parathyroid hormone) is rare and is often due to surgical removal of the parathyroid glands. Parathyroid hormone plays a key role in regulating and maintaining a balance of your body's levels of two minerals: calcium and phosphorus.

The low production of parathyroid hormone in hypoparathyroidism leads to abnormally low calcium levels (hypocalcemia) in your blood and bones. Hypoparathyroidism also leads to an increased amount of phosphorus (hyperphosphatemia).

Treatment for hypoparathyroidism consists of taking supplements to normalize your levels of calcium and phosphorus. Because hypoparathyroidism is a chronic condition, treatment is generally life-long.
1. Hypoparathyroidism. Mayo Web site. Available at:
Full Prescribing Information for Rocaltrol

Important Safety Information for Rocaltrol® (calcitriol) Capsules and Oral solution
Rocaltrol should not be taken if there are symptoms of abnormally elevated vitamin D or calcium levels or if you are allergic to any product ingredient. Taking too much vitamin D can cause high calcium levels, which could trigger serious health problems and may require immediate medical attention. Dosage adjustments of Rocaltrol may be required if other medications are initiated or discontinued; do not stop taking other medications without your physician's knowledge. Potential side effects of Rocaltrol are, in general, similar to effects of taking too much vitamin D. Report early symptoms of elevated vitamin D or calcium including weakness, headache, somnolence, nausea, vomiting, dry mouth, constipation, muscle or bone pain, metallic taste, and anorexia, abdominal pain or stomach ache, to your doctor.