10 doctors weighed in:

How long does local anesthesia last?

10 doctors weighed in
Dr. Orrin Ailloni-Charas
Anesthesiology
4 doctors agree

In brief: It depends.

The duration of action of a local anesthetic is related to the choice of the specific medication and its uptake and metabolism. Some local anesthetics last longer than others.
The location of the administration and whether or not a vasoconstrictor was added to slow uptake also have impact. A discussion with your doctor about expectations is appropriate.

In brief: It depends.

The duration of action of a local anesthetic is related to the choice of the specific medication and its uptake and metabolism. Some local anesthetics last longer than others.
The location of the administration and whether or not a vasoconstrictor was added to slow uptake also have impact. A discussion with your doctor about expectations is appropriate.
Dr. Orrin Ailloni-Charas
Dr. Orrin Ailloni-Charas
Thank
Dr. Anthony Pollizzi
Anesthesiology
2 doctors agree

In brief: Hours

The LAs may last up to 24 hours depending on the type of drug used.,

In brief: Hours

The LAs may last up to 24 hours depending on the type of drug used.,
Dr. Anthony Pollizzi
Dr. Anthony Pollizzi
Thank
Dr. Ronald Achong
Surgery - Oral & Maxillofacial
1 doctor agrees

In brief: Depends

It can last less than an hour to over several hours.
There are many different types of local anesthesia and some without epinephrine. Usually anesthetics that have epinephrine, have a longer duration of action.

In brief: Depends

It can last less than an hour to over several hours.
There are many different types of local anesthesia and some without epinephrine. Usually anesthetics that have epinephrine, have a longer duration of action.
Dr. Ronald Achong
Dr. Ronald Achong
Thank
Dr. Richard Pollard
Anesthesiology

In brief: Varies

Some local anesthetics wear off within 30 minutes, while other are specifically designed to be active for up to 20 hours.
It depends on the type and location of the drug. Talk to your anesthesiologist about medications that they will use.

In brief: Varies

Some local anesthetics wear off within 30 minutes, while other are specifically designed to be active for up to 20 hours.
It depends on the type and location of the drug. Talk to your anesthesiologist about medications that they will use.
Dr. Richard Pollard
Dr. Richard Pollard
Thank
Get help from a real doctor now
Dr. Crystal Twynham
Board Certified, Surgery
30 years in practice
939K people helped
Continue
111,000 doctors available
Read more answers from doctors