inhibition by isoprenaline of the aggregatory response of human and rat platelets induced by various excitatory agonists is blocked by beta 2-adrenoceptor antagonists . beta 1-adrenoceptor antagonists are ineffective . beta 2-adrenoceptor agonists cause inhibition of the response of human platelets to various excitatory agonists .
C0001643
beta
C0086418
human