Dutch. Main guy gets head KO'd, then bound and gagged.

Dutch. Villain shoots a gas pellet at the protagonist.

Dutch.

KO is not shown, but we get a nice unconscious shot of Zatanna. Look in issue #414 for Zatanna bound and gagged.

Brief head KO. Not sure who the damsel is. Not a very good scene.

From EC Comics, the short lived series Moon Girl. These are her head KO's from issues 3 and 4. Contributed by c3c.

A cowgirl gets pistol whipped in the head. She is bound and gagged and strapped to a horse. Contributed by c3c.

A mysterous villain turns on the gas valve in the girl's home. The gas causes her to pass out. We get some nice unconscious shots of her. From a collection of stories by Chie Shinohara.

Sonic gets gassed. From Archie comics.

Mary is gassed while sleeping in her room. She ends up tied up. Contributed by c3c (digdid)

In this scene, a woman places a chloroform cloth over Mary's face, but she manages to fight it off. The villain is bound and gagged shortly after. Contributed by digdid (c3c).

Dutch comic. Great scene! The bad guy is actually a male. Not sure who the damsel is. We get some nice unconscious shots of her as she is carried. Contributed by c3c (digdid). French comic title: Tif et Tondu: L'assassin des 3 villes soeurs

Nice scene from a Dutch comic. The cloth is dangled in front of the girl. Contributed by Suicide (Trifecta3.net).

Cut out the nudity. Very brief scene.

Aieki Mamire doujinshi. Graphic hentai has been left out. Girl is kind of young too.

French comic. Another lucky find! The girl is really cute too. Edit: This has got to be one of the finest European scenes out there. The setup is great, the art is good and the girl is a hot nurse. There's even a 'uniform stealing' at the end. All around good scene.

Wonder Woman is playing the old "Get yourself captured to find out where the bad guys are hiding" trick, but this bad girl renders Wonder Woman so disoriented that she doesn't know which way is up! Keywords: tape, eyelids, propeller.

Wonder Woman travels into the past to help man-hatin' cowgirl Judy MacGregor get over her issues that stem from a past life. Unfortunately, they get split up while traveling back in time, and Wonder Woman lands in the midst of a crew of Arab pirates, and is immediately knocked out and captured.

This is an adult comic, so there is a lot of nudity. Those parts are not posted. The girl is chloroformed in a fairly long scene. Later, she is bound and chloroformed once more.

Adult manga. Censored out the rape scenes. The woman is actually chloroformed twice in this scene.