Avatar comics. In issue #1, Avengelyne is knocked out in battle (almost missed this!).
She is shown chained in the next issue.
Towards the end of this issue, Avengelyne passes out underwater and returns to the surface unconscious.
There's even a little girl on girl action.
Lucky find! After being kidnapped, Meruna (heroine of story) is strapped to a table by an evil organization. The head villain tries to take her uniform off, but Meruna protests. The villain places a chloroform soaked cloth over Meruna's face to put her to sleep. He then proceeds to remove her helmet.
From the auth...
The protagonist drugs a rich delinquent girl from the tennis club, in order to avenge his friend who got brutally beaten by her and her gang of girls with tennis rackets. Again the scene is fantastic.
A funny thing to note, the chloroform was provided by the nurse from ch.2, who became his "ally".
Seriously, at this point there is no way any character can top Wonder Woman in terms of KO's. This is just awesome.
Apparantly, this story is concluded in Wonder Woman v2 #63. If anyone can find that issue, there could be more unconscious shots!
The main girl (she's the cute one who wears glasses) is given a drugged ice cream dish.
The drug causes the girl to passout. A bunch of other girls proceed to inject her and do stuff to her.
Contributed by: e-hentai.org
Lois Lane is kidnapped in a car. First, the villains try to chloroform her (but she fights back hard). Then, they
release sleeping gas into the car. Lois passes out after a good struggle. She wakes up tied to a pole, surrounded by cultists.
Contributed by: Western Civilization