hypocalcemia
"I have been taking Calcitriol for just about 2 months. After 1 month I felt great, my DR reduced my dosage from 0.50 to 0.25mcgs. About a week later I had slight symptoms and at 1 1/2 weeks I was headed to the ER taking 4500mg of calcium every 6 hours. Since increasing the dosage of Calcitriol back to 0.50mcgs I have noticed some of the symptoms and definitely their severity going away, but it has been a SLOW process. My condition was a result of complications from a Thyroidectomy due to Papillary Carcinoma (Cancer), in which I believe my Parathyroids (all) were put into shock and possibly destroyed."