hypocalcemia
"I too take Rocaltrol, but the generic form which is Calcitriol.  I had thyroid cancer and my parathyroid was messed up during the removal of the thyroid.  Without this medication my body would go numb and I would have facial spasms.  I will have to take this medication the rest of my life, but I'm thankful I can get it and insurance does pay for it."