Hanna appears to have suffered some injury while underwater.

I don't know which one is 'Bullet' and which one is 'Francesca'. They are both sexy girls who are sort of like vigilantes. In this scene, the brunette girl with stitches on her arms is sort of kidnapped. She meets with an older creepy guy at his house. At first, the old guy looks like he's pretty nice. He even gives t...

Tiger Girl is knocked unconscious, tied to a rock and thrown into a river along with the standard Good Scientist. Her faithful manservant Abdullah rescues her. Source: Digital Comic Museum

Really excited to show off more original art published by Sleepycomics.com! I guess this would be a continuation of the 'Zatanna chloroformed' piece I did earlier this year. Our favorite magician heroine now finds herself bound and gagged to a chair! Her costume varies a lot from artist to artist. In this version, she...

The Gist: kidnapped inside a car, wakes up tied to chair. Source: http://ac.qq.com/ComicView/index/id/634411/cid/42 Contributed by Nephenthal

Another great issue. The unconscious Diamondback, in her tattered costume, is in need of constant rescuing by Cap. He carries her to safety. Later she goes off on a scuba mission.

Phantom Detective 35 Spicy Detective 119 Speed Detective 201 Detective Fiction 13 New Detective 15 True Detective 90 Private Detective 45 New Detective 14 Popular Detective 2 Double Detective 1 Private Detective 33 Detective Tales 56 (Drugged Drink) Popular Detective 46 True Detective 64 True Detective 92 Black Book D...

Cult members wearing robes kidnap a random Japanese girl using chloroform. They place her in a row of coffins. I found this scene while randomly searching.

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Really run of the mill hentai chloroform scene. The woman is a brunette with shorter hair. She wakes up in some darkened room, with water dripping onto her body. Source: exhentai.org

Nakagawa Hinata waits outside a hotel for Zen-Kun, a boy with whom she has a forbidden love with. While waiting, Hinata is approached by a guy pretending to do a survey. She is distracted and then chloroformed from behind. Hinata is carried into a waiting van, where her rival Sena looks on. http://kissmanga.com/Ma...

Author: NOMA Miyuki. Alerted via the Time to Sleep website. This is a nice lighthearted chloroform scene (if you even want to call it that!).

Girls in underwear and tights fight in the rain. Lots of girl on girl action wrestling. I'll let the scene speak for itself!

Sean Galloway’s Shadow Pirates webcomic. In chapter 10, Ginger is kidnapped by a team of bad guys. She’s shown getting chloroformed, and later wakes up tied to a chair. Very good artwork! https://m.webtoons.com/en/fantasy/shadow-pirates/chapter-10/viewer?title_no=1455&episode_no=10

Alan Moore's Voodoo, with art by Al Rio. The cover is from the Trade Paperback. Sleeping scene is from issue #1.

Ms. Marvel is fighting alongside Hawkeye and Wasp against the Super Skrulls, who have come to invade the Earth. In the fight, she is the only one to get knocked unconscious and the team get captured. Hawkeye and Wasp get restrained, and Ms. Marvel's limp body gets thrown over the shoulder of the Wolverine Super Skrull....

Darkseid holds an unconscious character named Beautiful Dreamer on the cover. Beautiful Dreamer is rescued by Superman later in the same issue. Beautiful Dreamer belongs to a group of heroes called "The Forever People".

Thugs kidnap a woman in the woods, during winter. Contributed by MoryoX

Various scenes involving a cute female superhero by the name of Mighty Heart.

Maike has interfered with nefaria's palns for the last time! Another beautiful piece by soyfan. Source: Original art