Pharmacology: Colitrol is the active form of Vitamin D. It increases the levels of Vitamin D in your blood which in turn raises calcium levels in the blood by helping in absorption of more calcium from your intestine. Thus, it is used in the treatment of calcium deficiency and postmenopausal osteoporosis. Colitrol is given in women after menopause to strengthen weak bones. It helps in reducing the bone damage. It is administered as an injection. It is advised not to self administer the injection, it should be...