Stable oral composition of zinc

Details Stable oral composition of zinc Stable oral composition of zinc

1990-01-03

1991-02-12

Rose, Shep K.

Drug, bio-affecting and body treating compositions

Dentifrices

424 55, 424641, 424642, 424643, A61K 716, A61K 3330

Patent

active

049922599

ABSTRACT:
A stable and clear aqueous solution of zinc salt useful as a mouthrinse and a gel dentifrice. In a preferred embodiment the aqueous solution comprises zinc chloride codissolved with a complexing agent of sodium gluconate, in a naturally derived anionic polymer of sodium carboxymethylcellulose. This solution is advantageous because it maintains clarity and chemical stability in temperatures of from about 4.degree. to about 50.degree. C. and may be alcohol-free. The anionic polymer acts as a buffer to provide a solution with a pH in a desirable range of from about 5.7 to about 6.5, which limits astringency and tartness.

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patent: 4568540 (1986-02-01), Asano
patent: 4645662 (1987-02-01), Nakashima et al.
patent: 4664906 (1987-05-01), Sipos
patent: 4765984 (1988-08-01), Vellekoop et al.

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