Mouth moistener for the relief of dry mouth condition
US5658554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Jun 1, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K33/42
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
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 EQU S.P.=[Ca][PO.sub.4 ].sup.2 is less than about 0.004, wherein [Ca] is the molar concentration of the released calcium ions and [PO.sub.4 ] is the molar concentration of the released phosphate ion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.