“How long does local anesthesia last?”
I will have a procedure under local anesthesia next month. How long does local anesthesia last?
6 Answers
AnesthesiologistAnesthesia
Depends on the agent used. From 2-12 hours. There are also ways to prolong effects up to 20-24 hours.
Good question. It depends on the local anesthetic drug, concentration, and volume injection, as well as the site if injection. Exparel is the longest acting, ~3 days. Bupivicaine/Ropivicaine ~3 hours. Lidocaine ~1 hour.
It depends on which drug is used and where the medication is injected. It could last anywhere from a few hours to a day.