JOHN BAVOSI / SCIENCE PHOTO LIBRARY JOHN BAVOSI / SCIENCE PHOTO LIBRARY
Heart drug. Illustration of a drug capsule dis- solving its contents around the heart. The pill capsule may be specially designed to release its contents at a slow, steady rate, and the drug may target a particular cardiac site. Accurate target- ing of drugs, now possible using advanced delivery systems, can reduce adverse reactions and side effects. The heart is seen here with its major aortic artery (red) and vena cava vein (blue). The atrial chambers are seen (pink); smaller coronary arteries with fatty deposits (yellow) are found on the muscular ventricles. Heart drugs can treat a variety of ailments from abnormal blood pressure, angina, coronary thrombosis and atheroma.
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