Main > PHARMA. > Drug Delivery > Mucosal Surface Delivery > Patent. > Claims > Claim 1: MucoAdhesive, Erodible > MultiLayer Device: (1) Water-Solubl > e Adhesive Layer in Contact with > Mucosal Surface & (2) Water-Erodibl > e Non-Adhesive Backing Layer, > for Control Device Residence Time. > (1): Water-Soluble Film-Forming > Polymer & MucoAdhesive Polymer > Combi. (2): PreCast Film Contg > > 1 of HydroxyPropylMethylCellulose > Etc.; Backing Layer Coated with

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Etc.; Backing Layer Coated with's subsections
Hydrophobic Polymer Etc. Claim 4:

Etc.; Backing Layer Coated with's products
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