Author: Chie Shinohara.
Aka "Purple Eyes in the Dark".
Shogakukan inc. manga.
Here is the description, translated from Japanese:
First volume there is a scene where in page 102 and page 145 Ozaki Satoko of the protagonist the 嗅 is done chloroform in Sonehara woman teacher. However it ended page 145 in attempted incident. In addition in cartoon library fourth volume P137 Satoko's of the baby daughter Mai the does chloroform in the same way in the root field. In addition one more. There was a scene where Mai does to also the same fifth volume P71.
Yeah, that made like no sense.
Alerted by Time to Sleep.
Update 7/5/09: Found the scene. The girl is first chloroformed. She wakes up bound and gagged, and is tortured for a bit. She escapes, but is recaptured and gagged. Finally, the villainess attempts to chloroform her again, but the girl escapes.