Abstract: Liquid antacid preparations comprising: a) an active acid neutralizing compound selected from the group consisting of calcium-containing compounds, aluminum-containing compounds, magnesium-containing compounds, and mixtures thereof; and b) an antimicrobial adjuvant selected from the group consisting of propylene glycol in an amount greater than 2 weight percent and less than 15 weight percent, glycerin in an amount from about 15 to about 20 weight percent, and combinations of propylene glycol in an amount from about 3 to about 10 weight percent with glycerin in an amount from about 3 to about 10 weight percent based on the total weight of the preparation are provided.

Abstract: The invention relates to heat stable liquid antacid and/or antigas preparations capable of being pasteurized in the temperature range of 60-100° C. comprising one or more acid neutralizing and/or antigas compounds in an aqueous liquid suspension consisting essentially of hydroxyethylcellulose as a suspending agent.