Yes, in almost every case you can donate blood high blood pressure included, as long as your reading on the day stays below 180/100 and you feel well. Hypertension itself is not an automatic disqualifier, and neither is the medication

In hemophilia A vs B, the difference comes down to one missing clotting protein. Hemophilia A means your blood is missing factor VIII. Hemophilia B means there is a deficiency of factor IX. Both stop your blood from clotting properly,