the histamine h-1 receptor antagonists clemastine , mepyramine , and diphenhydramine efficiently inhibited lymphocyte binding of the histamine-albumin conjugate with ic50 values of 0.2 , 1 , and 40 mm , respectively , indicating interactions with low affinity h-1 receptors .
C2757048
histamine h-1 receptor
C0034282
mepyramine