The present invention provides pasty or liquid compositions for applications on mucous membranes of cavities easily reached by hand, having a bio-adhesive prolonged effect or release. The composition includes a polysaccharide matrix agent selected from the group constituting of lambda carrageenan and iota carrageenan. The matrix allows the in situ formation of a matrix film with a reinforced bio-adhesive capacity due to complexation reactions between the polysaccharide matrix agent and the components of the local secretions of the mucous membranes. The compositions can also include a lecithin compound as a reinforcing agent of the intrinsic bio-adhesive properties of the polysaccharide matrix agent. The composition can further include at least one of (a) a hydration medium for the polysaccharide matrix agent, (b) a lecithin co-solvent allowing the dispersion of the micellar lecithin solution in the hydration medium, (c) an additive or additives, and (d) at least one active ingredient.

Care &amp; Pharma Perspectives SA

CARE &amp; PHARMA PERSPECTIVES SA

Pasty bio-adhesive sustained release compositions

Oral care composition comprise a stannous ion source and a thickener consisting essentially of carrageenan and xanthan gum. A method for treating the oral cavity comprises administering the composition to the oral cavity in a toothpaste.

The Procter &amp; Gamble Company

Oral care compositions

The present invention generally relates to formulations and methods for treating oral inflammation, oral injury and/or oral pain by applying hydrogel, viscous liquid, or other formulation to the oral cavity. Wet formulations comprise a hydrophilic polymer selected from the group consisting of pyrrolidones, hyaluronic acid and salts thereof, alginic acid and salts thereof, and carrageenans and salts thereof; calcium salts or ions, phosphate salts or ions, and water as well as other optional components. Dry formulations such as powders are also contemplated.

carrageenan/cariës

Pasty bio-adhesive sustained release compositions

Oral care compositions

Formulations and methods for treating oral inflammation, injury, or pain

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