Eksogent calcitonin elimineres hurtigt fra kredsløbet, gennemsnitlig tilsyneladende halveringstid er 1, 1 time efter i. m. administration og 1, 1- 1, 4 time efter subkutan administration.
Exogenous calcitonin is rapidly eliminated from the circulation, mean apparent half-lives being 1.1 hours after i. m. and 1.1 - 1.4 hours after subcutaneous. administration.