Daphne is gassed to sleep by a bad guy disguised as a military officer. The bad guy is a spy who can change disguises, and dresses himself up as Daphne

Daphne, Fred and Scooby are rendered unconscious with knockout gas. The villain is a ghost dressed up like a royal king. When the gang wakes up, they are tied up over a tank of sharks.

Daphne gets captured by a cult of vampires. They decide to make her the 'Vampire Queen', and stage a wedding. Her hands are bound to trees. The main Vampire shows up and release a hypnotic sleeping gas, rendering Daphne unconscious. ====== Scene can be viewed here: http://clips.sleepycomics.com/clip/?v=482

A special Empowered comic from Adam Warren. Features a nice scene where Ninjette and others are knocked out in an explosion.

A beautiful celebrity, one of the "Famous Kaou Sisters", is gassed to sleep in the back of a car.

Ariela is drugged to sleep by some scented candles.

A sexy Soldier of Justice rescues finds a young girl in trouble and manages to rescue her. It's a trap though, and our heroine is struck with a tranquilizer dart!

Full manga title is [Ichinose] Kasshoku Senshi wa Shiri de Naku (Heroine Pinch Vol. 7). Two thugs take notice of a strong beautiful female fighter. She had just finished slaying a monster in a coliseum. Instead of attacking her head on, the two thugs manage to trick her into sniffing a sleeping drug.

Full manga title: [ZENMAIN (Nejiro)] Natsuzora ni Tokeru Gunjou (Granblue Fantasy) A girl in a cute bikini is chloroformed, but it seems to only weaken her.

A young school girl is kidnapped with chloroform. She is thrown into the trunk of a car, bound and gagged. Lupin discovers her after using the car as a getaway. Contributed by Ieon

Lupin chloroforms a woman and she is replaced with a look a like. Contributed by Ieon

Keywords: circus, fujiko, lupin, tiger. Contributed by Ieon.

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...

Yona and Lili are taken in by an old woman at an inn, who serves them tea. Yona starts to suspect it's a trap. Lili suddenly falls unconscious, and it turns out the tea was drugged. Before Yona can react, the old lady chloroforms her. http://mangafyi.com/manga/2233/akatsuki-no-yona/chapter-111-chapter-111

She-Dragon fights a monster in a deadly dimension. She hits her head on a rock and drifts unconscious in space. http://readcomiconline.to/Comic/She-Dragon

Sexy female warrior Arhian discovers a dungeon with imprisoned young girls. Before she can rescue them, she is clubbed from behind. http://readcomiconline.to/Comic/Arhian-Head-Huntress

Story is called Rude Awakenings. Nice panels showing Glory sleeping.

Glory is injected with a sedative, but it doesn't work.

Areala is shot with a poison dart and sent on a dangerous game.

Mantra is given a drugged drink.