PTH and osteoporosis: Current available treatments for osteoporosis are selective estrogen-receptor modulators, antiresorptive medications which include bisphosphonates (BP) and denosumab (Dmab), bone-forming agents such as parathyroid hormone (PTH1–84 or its fragment PTH1–34), and strontium ranelate (SrR) which has a dual mechanism of action [1].