Blocking of hypotensive effects of histamine by the drugs blocking beta-adrenergic receptors.
D000818:Animals; D004285:Dogs; D004336:Drug Antagonism; D005260:Female; D006632:Histamine / Q000494:pharmacology*; D008297:Male; D011984:Sensory Receptor Cells / Q000502:physiology*; D013565:Sympatholytics / Q000494:pharmacology*
D013565:Sympatholytics; D006632:Histamine