alpha 1-adrenoceptor blockade by prazosin increased forearm blood flow by 122.7 +/- 33.8 % and combined alpha 1 and alpha 2 blockade by phentolamine by 127.2 +/- 29.9 % , indicating much the same degree of postjunctional alpha-adrenoceptor blockade .
C0001638
alpha 1-adrenoceptor
C0034784
alpha-adrenoceptor