A liquid oral pharmaceutical dosage form, comprising pharmacologically effective amounts of at least one histamine H2- receptor antagonist in a hydrophobic/lipophilic liquid substantially free from water comprising at least one viscosity enhancing agent, and pharmacologically effective amounts of one or more antacid(s) in a liquid comprising at least one viscosity enhancing agent and at least one flavor, wherein the two liquids are physically separated from each other and wherein the two liquids have matching rheological profiles and a package comprising multiple liquid oral dosage forms as well as a method of treating a gastric disease or disorder by use of the liquid oral pharmaceutical dosage form.