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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 38 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.
Dr. Justin Zumstein
Dentistry 25 years experience
Depends on Type: Short acting will last 1-3 hrs medium will typically last 2-4 hrs and long acting can be 8-12 hrs.
Dr. Jared Plitt
Dentistry 21 years experience
It varies.: Novocaine is rarely used today. The most common local anesthetic is lidocaine, and the most common formulation is packaged with epinephrine. Lidocaine with Epinephrine will usually provide deep anesthesia to the nerve of a tooth for 45 minutes and for the soft tissue, lips, gums, etc, for twice that. Anesthetic without Epinephrine wears off quicker. Some anesthetics, like marcaine, can last hours.

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A 41-year-old member asked:

How long before novocain (procaine) wears off?

2 doctor answers2 doctors weighed in
Dr. David Laha
Podiatry 39 years experience
1 1/2 - 2 hours: Length of anesthesia can vary depending on a variety of factors.
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 24 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 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 39 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 44 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 26, 2021

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