Assertion: vasodilator's mechanism | /r/CapableOf | contribute to their pressor effects
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Source sentences:
text: Although many sympathomimetics possess other mechanisms that contribute to their pressor effects (e.g., β 1 -adrenoceptor agonist activity), a common property of several of these these drugs is that they bind to α 1 -adrenoceptors on vascular smooth muscle thereby promoting smooth muscle contraction.