Neftrol Capsule 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 the absorption of more calcium from your intestine. This way it helps in the treatment of calcium deficiency and postmenopausal osteoporosis. Neftrol Capsule is also beneficial in increasing muscle mass, helps in the prevention and treatment of hypocalcemia, as well as helps in reducing fatigue and muscular pains. It boosts immunity and increases body resistance against infection. This medicine is to be taken in the dosage as advised by the doctor. Consult your doctor if you plan to take any other form of vitamin D along with this medicine. This medicine is generally tolerated with little or no side effects. In patients with kidney disease patients, dose adjustment may be required. Discussed with your doctor. Avoid or limit the consumption of alcohol while on treatment with this medicine.