Description For NitroMed, nitric oxide is a gas with good mileage. The company has developed a technique to enhance nitric oxide and add it to drugs to improve their efficiency. Nitric oxide is formed in the body and plays a role in relaxing blood vessels, making it harder for blood platelets to stick to blood vessel walls, and thereby reducing the obstructions that lead to stroke. Its sole product, BiDil, has FDA approval and is specifically indicated for heart disease in self-identified African-Americans, a group that suffers from the disease at a higher rate than other ethnicities. NitroMed was acquired by health care investment group Deerfield Management Company in 2009.