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Milrinone, sold under the brand name Primacor, is a pulmonary vasodilator [2] used in patients who have heart failure. It is a phosphodiesterase 3 inhibitor that works to increase the heart's contractility and decrease pulmonary vascular resistance.
Milrinone, one of the first PDE3 inhibitors used clinically. A PDE3 inhibitor is a drug which inhibits the action of the phosphodiesterase enzyme PDE3. They are used for the therapy of acute heart failure and cardiogenic shock.
Specifically, in patients experiencing inadequate blood perfusion (with blood pressure below 80 mmHg), the American Heart Association / American College of Cardiology (ACC/AHA), recommends the use of Dobutamine and Milrinone. [75] Whereas in clinically stable patients with sufficient perfusion, cardiac inotrope use is advised against. [76]
Amrinone, also known as inamrinone, and sold as Inocor, is a pyridine phosphodiesterase 3 inhibitor. [1] It is a drug that may improve the prognosis in patients with congestive heart failure. [2]
Medications used include: diuretic agents, vasodilator agents, positive inotropes, ACE inhibitors, beta blockers, and aldosterone antagonists (e.g., spironolactone). Some medications which increase heart function, such as the positive inotrope milrinone, lead to increased death, and are contraindicated. [9] [10]
Certain medications, such as dobutamine or milrinone, enhance the heart's pumping function and are often used first-line to improve the low blood pressure and delivery of blood to the rest of the body. [4] Patients who have cardiogenic shock unresponsive to medication therapy may be candidates for more advanced options such as a mechanical ...