Propofol
"I'm 22, had a recent colonoscopy and was given propofol. I completely recommend it for anyone with anxiety. I take anxiety medication and was very nervous I'd have a freak out due to the effects of the anesthesia but instead I fell asleep so quickly, I did wake up during my procedure briefly and it was just funny because I remember going wow this is so cool can I stay awake? Then I was asleep again. When I woke up again I was being wheeled to the post-procedure room and I was completely aware, no grogginess. Overall I thought the drug worked wonders because I was completely clear headed and relaxed when I woke up!"