US FDA approves Pfizer's drug for rare bleeding disorder

(Reuters) -The U.S. Food and Drug Administration approved Pfizer's once-a-week injection for the two main types of a rare bleeding disorder called hemophilia, the company said on Friday. The drug, Hympavzi, is given under the skin through an auto-injector pen to prevent or reduce bleeding episodes in hemophilia A or B patients aged 12 years and older. The disorder primarily affects men and