the effects of 3 quinazoline alpha-adrenoreceptor antagonists , prazosin , trimazosin , and uk-33,274 , on lying blood pressure ( bp ) , bp response to 60 degrees tilt , pressor response to noradrenaline , phenylephrine , and exercise ( isometric and dynamic ) were measured in a double-blind study in 6 volunteers .
C0034407
quinazoline
C0032912
prazosin