Anesthesia
"I had a colonoscopy a few days ago and propofol was used as the anesthesia.  The doctor said he was injecting it into my IV, and I felt a little burning sensation in my hand, and then I was awake and in the recovery room.  No drowsiness, no nausea - I drank some juice, got dressed, and went home, where I felt absolutely fine the rest of the day!"