Does Forteo cause blood clots to form in the heart?

Answer 1

Blood clots are not listed as a major side effect of Forteo.

However, in a small percentage of cases Forteo causes hypercalcemia (elevated calcium in the bloodstream), which, in turn, may affect clotting. There is no data to say how significant a concern this might be but you would want to make sure that your doctors monitors your calcium level.  Hypercalcemia is bad for a variety of reasons.