Same Versed Cocktail mix they use for colon screens and cataract surgery, even upper GI’s. My gastro has his own clinic surgery center, it is set up much like a mini hospital. I get Upper GI’s every 2 yrs because of Barrett’s Esophagus, legacy of long term drug induced GERD. It can turn cancerous, so he does the every 2 yr biopsy.
Versed Cocktail fentanyl/versed/propofol a typical cocktail used by Gastro’s and Cataract surgeons. It works well, fast, and has fewer complications than the older anesthesia. You are not under as long either and wake up fairly clear headed, a cup of coffee clears away any lassitude fast. How long you are actually under is controlled by the anthologist, he can just add more if the surgeon needs more time.
So even though you mention your biopsy, you’re saying that is what is typically used for the endoscopy?
I had a couple of those (stomach and esophagus) over the years, but just under local anesthetic.