<prompt> Which of these antihypeensives do not have any central action?PropranololMethyl dopaMinoxidilNitroprusside  <response>: prpranolol is a beta blocker,methyldopa is a alpha agonist, minocidil is a potassium channel blocker and notroprusside is a nitrate all are used in treatment of hypeension. REF KD Tripathi 8th ed. 