What drugs are accessible that can be used to cause a person to pass out?

Pass out: Man, i see a lovely, tall, beautiful, full of life and vigour, walking briskly with pride, head held high, and let her hair flow, the way she likes, i pass out every time i see her, my daughter. What else would you want. Its all around you, chase a butter fly, you will pass out. Pleasure, i guess you seeking. Its all around you. See, look at the sun , it brings a new dawn, with new promise.