Calcitonin Salmon Injection 200U Multiple-Dose 2 mL (RX) **Refrigeration RequiredCalcitonin Salmon Injection 200U Multiple Dose 2 mL is a prescription medication that contains the hormone calcitonin synthetic derived from the Pacific salmon fish. This hormone helps to regulate the level of calcium in the blood by promoting calcium absorption in the bones and inhibiting its release from the bones. It is used to treat osteoporosis, a condition in which the bones become weak and brittle, and to relieve symptoms of Paget's disease, a