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    • 8. 发明授权
    • Hydrophilic pressure sensitive adhesive for topical administration of
hydrophobic drugs
    • 疏水性压敏胶粘剂用于静脉注射药物的局部给药
    • US5173302A
    • 1992-12-22
    • US590648
    • 1990-09-28
    • Carolann M. HolmbladJoan M. BergstromTerese A. Bartlett
    • Carolann M. HolmbladJoan M. BergstromTerese A. Bartlett
    • A61K9/70A61L15/44A61L15/58
    • A61K9/7061A61L15/58
    • Novel hydrogel formulations useful as adhesive reservoirs for topical or transdermal drugs employ as the polymer base a crosslinked polymer or copolymer of 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof. The gels are prepared from polymerizable compositions comprising:20%-50% of a monofunctional monomer component, at least 75% of said component comprising 2-acrylamido-2-methylpropane sulfonic acid or a salt thereof, the balance being selected from the group consisting of acrylic acid, water soluble acrylic functional monomers and vinyl pyrrolidone;30%-50% of a glycol component selected from the group consisting of compounds of the formulaHO--(C.sub.2 H.sub.4 O).sub.n --H,HO--(C.sub.3 H.sub.6 O).sub.m --H and mixtures thereof, where n is in the range of about 4 to about 16 and m is 1-4;between about 0.02% and about 0.20% of a crosslinking monomer;an amount of a free radical polymerization initiator effective for initiating polymerization of said monofunctional monomer and crosslinking monomer components; anda therapeutically effective amount of a topically or transdermally deliverable drug, at least about 60% of said drug being dissolved in the formulation.
    • 用作局部或透皮药物的粘合剂储存器的新型水凝胶制剂使用2-丙烯酰胺基-2-甲基丙磺酸或其盐的交联聚合物或共聚物作为聚合物基质。 凝胶由可聚合组合物制备,包括:20%-50%的单官能单体组分,至少75%的所述组分包含2-丙烯酰氨基-2-甲基丙磺酸或其盐,余量选自 的丙烯酸,水溶性丙烯酸官能单体和乙烯基吡咯烷酮; 30%-50%的选自式HO-(C 2 H 4 O)n H,HO-(C 3 H 6 O)m H的化合物及其混合物的二醇组分,其中n在约4至约16的范围内,m 是1-4; 约0.02%至约0.20%的交联单体; 一定量的自由基聚合引发剂,用于引发所述单官能单体和交联单体组分的聚合; 和治疗有效量的局部或透皮递送的药物,至少约60%的所述药物溶解在制剂中。