. "a medicine used to treat the gastric effects of histamine in cases of peptic ulcers and gastritis and gastroesophageal reflux; works by blocking the effects of histamine on the receptor site known as H2"@en-us . "histamine blocker"^^ . . "0"^^ . "103522239"^^ . . . "histamine blocker"@en-us . . "103392849"@en-us . "0"^^ . . "03522239-n"^^ . . . . . "102820966"@en-us .