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A 32-year-old member asked:

How long does it take for novocain (procaine) to wear off usually ?

3 doctor answers7 doctors weighed in
Dr. David Laha
Podiatry 38 years experience
1 1/2 - 2 hours: Length of anesthesia can vary depending on a variety of factors.
Dr. David Stall
Dentistry 38 years experience
Average is 2 hours: To be precise, novocaine is no longer in use. Lidocaine is most popular anesthetic used and the numbing effect lasts about 60 minutes on the tooth and about 2 hours on soft tissue like lips and tongue. Other anesthetics that dentists use may last from 45 minutes to 8 hours depending on the need and situation.
Dr. Gary Lederman
Dentistry 40 years experience
Reversal agent: There is now an injection that can be given at the end of an appointment that actually reverses the numbness immediately. It is relatively expensive, and i like the fact that the numbness lingers during the immediate post treatment period. Nsaid administration also insures post injection comfort.

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A 37-year-old member asked:

How long does novocain (procaine) anesthetic take to wear off?

2 doctor answers2 doctors weighed in
Dr. Leto Quarles
Family Medicine 23 years experience
Give it time: Novocaine is a local anesthetic; it is supposed to make the area numb. Depending on your metabolism and how much was used, novocaine shots typically wear off in about 3-6 hours. Sometimes novocaine is mixed with Marcaine or another local anesthetic, and may take up to 12 hours to completely wear off. If you are worried, check with the doctor who did the procedure you were numbed up for.
A 29-year-old member asked:

How long does it normally take novocain (procaine) to wear off?

2 doctor answers2 doctors weighed in
Dr. Kiyan Mehdizadeh
Dentistry 9 years experience
2 hours: Novocaine is the brand name of an anesthetic that is no longer used. Most likely the anesthetic you were given was lidocaine. Lidocaine is the most commonly used anesthetic in general dentistry and it wears off in about 2 hours.
A 33-year-old member asked:

How long does it take novocain (procaine) to wear off?

3 doctor answers7 doctors weighed in
Dr. Mark Sawyer
Dentistry 37 years experience
2-3 hours: Most of the time it takes 2-3 hours for novacaine to wear off. Sometimes it can seem a bit longer. There are some brands that last twice as long.
A 41-year-old member asked:

How long before novocain (procaine) wears off?

2 doctor answers2 doctors weighed in
Dr. David Laha
Podiatry 38 years experience
1 1/2 - 2 hours: Length of anesthesia can vary depending on a variety of factors.
A 35-year-old member asked:

How can you get novocain (procaine) to wear off?

4 doctor answers9 doctors weighed in
Dr. Earl Sandroff
Dentistry 43 years experience
Time is the antidote: Most of the time dental anesthetics wear off with time. Depending on the type, concentration and amount of Epinephrine in the anesthetic will give you a clue how long it will take. Sometimes 45 minutes to several hours. There is now on the market an anesthetic reversing agent that can be injected into the same area but...It is expensive and many dentists don't have it available.

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Last updated Oct 24, 2017
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