| 摘要 |
A patch for transdermal administration of drugs through controlled release system, consisting essentially of:A) a flexible backing layer;B) an adhesive layer comprising:an adhesive pressure sensitive adhesive polymeric matrix,a cohesion improver,a tackifier agent,a combination of permeation enhancers consisting of a first component which is a saturated fatty acid or fatty alcohol represented by the formula CH3-(CH2)n-COOH or CH3-(CH2)n-CH2OH respectively, in which n is an integer from 6 to 16, and of a second component which is a monounsaturated fatty acid or fatty alcohol represented by the formula CH3-(CnH2(n-1))-COOH or CH3-(CnH2(n-1))-CH2OH respectively, in which n is an integer from 8 to 22, with the provision that the chain lenght of the first component is different from that of the second component,C) a protective liner, which is removed at the moment of use.
|
