cimetidine: a drug (trade name Tagamet) used to treat peptic ulcers by decreasing the secretion of stomach acid
histamine blocker: 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
asphalt: a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons