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US 5,314,915 AGranted
Bioadhesive pharmaceutical carrier
AssigneeMcNeil-PPC, Inc.
InventorWilliam F. Rencher
Life of this patent
Estimating the term…
Abstract
Bioadhesive pharmaceutical carrier consisting essentially of a polymer blend of sodium carboxymethyl cellulose and xanthan gum or sodium alginate. The invention also provides for a method of control releasing a pharmaceutical active comprising incorporating an active into the bioadhesive pharmaceutical carrier. The invention is particularly adaptable for oral use and teething gels.
Claims10
A bioadhesive pharmaceutical gel, consisting essentially of:
- a therapeutically effective amount of at least one anesthetic other than benzocaine;
- about 0.25 to about 25 percent by weight sodium carboxymethyl cellulose;
- about 0.25 to about 25 percent by weight of xanthan gum or sodium alginate;
- and
- diluent selected from the group consisting of glycerin, propylene glycol, dioxolanes, glycerol, glycofurol, dimethylacetamide, ethyl lactate, alcohols, glycols, sorbitols, USP oils, NF oils, lecithin, lanolin, ethyl oleate, isopropyl myristate, benzyl benzoate, petrolatum, cocoa butter and mixtures thereof.
2 more elements
Dependencies are inferred from the claim text.