DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Editorial use only.
Nitroglycerin heart drug. Vial of the cardiac drug glyceryl trinitrate (GTN), also known as nitroglycerin. GTN is a vasodilator (blood vessel widening) drug used to treat angina pectoris, pain due to the constriction of the cardiac arteries, and hypertension (high blood pressure).
Model release not available. Property release not required.