
These two older drugs, nitroprusside and isoproterenol, are frequently used in emergency and intensive care situations and have no direct alternatives, say cardiologists.
(Image credit: Ron Antonelli/Bloomberg via Getty Images)

These two older drugs, nitroprusside and isoproterenol, are frequently used in emergency and intensive care situations and have no direct alternatives, say cardiologists.
(Image credit: Ron Antonelli/Bloomberg via Getty Images)