I do SmartLipo, and was trained to use oral sedation with Halcion .25 mg and Lortab or Percocet. Depending on the person and the length of the procedure, they may have 1-2 of each over a several hour period. Most people do well with this. I have had one person who became agitated and disinhibited with the halcion, and I switched to Ativan 1mg. As an Anesthesiozogist, I have a bit of an advantage in figuring out what to use and how to handle various situations. Remember that all benzodiazepines are actually anti-analgetic, and will increase sensitivity to pain, so you must have pain medication as well. Also the active metabolites will build up on you if you keep giving a little more to keep them on the table, and you will end up with someone unarousable at the conclusion of the procedure.

oops! that was Anesthesiologist! sorry for typo.