| abstract |
A patch has a backing which has been subjectednto an ultraviolet-screening processing, the backingnusually being of one layer. The ultraviolet-screeningnprocessing usually uses an organicnultraviolet absorbent and/or an inorganicnultraviolet-screening agent. The patch can containnin its base a medicine of poor photo-stability and annon-steroidal anti-inflammatory analgesic. |