Mouth moistener for the relief of dry mouth condition

摘要

A mouth moistener for alleviating dry mouth condition comprised of an aqueous vehicle containing less than about 2% by weight an edible organic acid such as citric or malic acid and a mixture of a water soluble calcium ion releasing salt and a water soluble phosphate ion releasing salt, wherein the solution is unsaturated with respect to calcium phosphate and the solubility product (S.P.) of the calcium and phosphate ion concentration present in the solution, as expressed by the equation${\text{S.P. = [Ca] [PO}}_{\text{4}}{\text{]}}^{\text{2}}\mathop{\mathrm{image}}$ is less than about 0.004, wherein [Ca] is the molar concentration of the released calcium ions and [PO₄] is the molar concentration of the released phosphate ion.