at antibiotic concentrations that inhibited platelet function by more than 80 % , the affinity of platelet alpha-adrenergic receptors for the alpha-adrenergic antagonist , [ ( 3 ) h ] dihydroergocryptine , and for epinephrine was reduced twofold by carbenicillin and sixfold by penicillin g ( p < 0.01 ) .
C0006976
carbenicillin
C0030827
penicillin g