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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
There are approximately 3 million unintended pregnancies in the United States each year.
The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.