Propofol
"I had a Colonoscopy which was the first one I had. I am 54 years old and elected to have this to be proactive.  I have to say I am normally nervous when General Anesthesia is administered because the first time I had surgery (Neck Surgery) I had a violent reaction involving nausea and vomiting. I had never had Diprivan (propofol) as an anesthetic but I was told by the Doctor that this medicine has an anti-nausea effect. He was absolutely correct. It was an awesome experience.  I am a person who gets sick from taking even mild pain pills and any kind of anesthesia.  I have to say it was great. I had no side effects whatsoever. The recovery time was nothing. I felt great when I came out of it. It felt like taking a short nap."