It is indeed, but as an analegesic, not an anasthetic. Paralytic, analegesic, anesthetic, is the usual trio for general anesthetic surgery. For “twilight sleep”

It is indeed, but as an analegesic, not an anasthetic. Paralytic, analegesic, anesthetic, is the usual trio for general anesthetic surgery. For “twilight sleep” as used in most colonoscopies, it will tend to be fentanyl and Versed.