<prompt> Which is True about dobutamine?Dobutamine decreases peripheral resistanceActs on D1 and D2 receptorsDecrease kidney circulationHas no effect on coronary circulation  <response>: Ref: HL Sharma 3rd ed pg no: 177 Dobutamine is a derivative of dopamine and is a selective beta1 agonist. It causes an increase in the force of contraction without a significant increase in hea rate. It also produces some vasodilatation by stimulating the beta 2 receptors. It doesnt decrease kidney circulation. 