What is benefit of human parathyroid harmon injection and use in osteoporosis and whether it is recommended for taking that medicine for two years.

YES. human parathyroid analogs has been approved for use of osteoporosis for duration of 2 years. This is a specialized treatment,and patient's needs to have proper evaluation before proceeding with treatment. It is an effective medication for osteoporosis.
Forteo really works. Forteo with vit d and calcium will add up to 8% bone mass in one year. It is the only medicine to increase bone density and move the patient out of the fracture risk zone quickly and efficiently.