Respected doctor I am using uniwin (univestin 500 mg) calciray tablets for my knee pain plus raymin vitamin d tablets once in a week for 8 weeks. Please inform uniwin 500 mg will have side effects. But even after taking medicines still difficult to sit on the floor for doing pooja. While checking calcium density it has been confirmed that it is osteo. Please confirm whether taking calciray plus tablet on alternate basis for long duration will have kidney stones. Aloo inform treatment to cure elbow pain.