<prompt> Which among the following is the best inotrope drug for use in right hea failure?DobutamineDigoxinDopamineMilrinone  <response>: Drugs with beta-adrenergic and dopaminergic D1 agonist have a positive inotropic effect. Milrinone is a phosphodiesterase 3 inhibitor that works to increase the heas contractility and decrease pulmonary vascular resistance. REF. Essentials of medical pharmacology KD TRIPATHI 8th Edition 