Addictives spiked

In Addictives spiked you can spike your food with multiple drugs and turn drugs into pill form.
Putting drugs into pills allows you to put multiple drugs into one without using food.
Turn drugs into liquid form. After you have a liquid drug you can put it in a trap block, or an emitter block which uses redstone.
Liquid gas can also be drained into a fluid tank and connected to pipes with diffusers to release gas from your pipes.

Make gas grenades or gas canisters to release gas by hand.
You can mix gas types in the grenade and canister.
For a less visual approach of giving drugs to people without spiking their food you can shoot them with a blow dart using a blow gun.

Wearing a gas mask with a filter makes you immune to gas, but if you eat laced items, take drugs, or get shot with a dart you still get affected.

Thanks to 5d79 for making the original addictives mod, and Kontpab for making addictives plus!!