| 摘要 |
A transdermal patch suitable for releasing a stimulant such as caffeine for an extended time period utilizes a pressure sensitive acrylic adhesive matrix constituted by an acrylic adhesive having hydroxy groups and an acrylic adhesive without hydroxy, groups, preferably in a respective weight ratio of about 2 to about 3. A suitable caffeine source is caffeine-fortified guarana seed extract, caffeine, a caffeine salt, and the like. |
