From a mainstream comic it would be Miracle Squad #2. Chloroformed in a really short nightie.
In artwork Red's Lum Chloroformed aftermath is really good. But my favorite is by Monsieur Paul "Poor Anita". It can be found at his Superheroine Central site in Misc. Pics 1. There is a link to the site here at Sleepy Comics. While perusing the site be sure to check out "WW Chloro Tiara" in Misc. Pics #2 for a most unique and ingenuous use of WW's tiara.