Hyder studied the common hormone drug, Medroxy-Progesterone Acetate. The study focused on the effect that progesterone has. It was shown that progesterone causes tumors to develop. Certain women are more susceptible to developing tumors than others, due to a specific defective protein.

The women who have the defective protein have other options for hormone replacement.

Defective drug attorneys are working on cases in which serious illness has developed due to faulty prescription drugs.