anesthesia
"I was given Propofol for a gastroscopy. The anesthetist gave me the first dose and the injection site burned a little and the vein felt cold, but I didn't fall asleep. So I was given another dose and I fell right asleep. I am usually nauseous and vomit after receiving anesthetic, but I didn't have those side effects with this drug. I was alert and able to walk soon after I woke up, but I did feel sleepy for about an hour after the procedure."