A 29-year-old member asked:
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how long does it normally take novocain (procaine) to wear off?

2 doctor answers
Dr. Kiyan Mehdizadeh
8 years experience Dentistry
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.
Answered on Jun 26, 2014
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Dr. Stan Shih
Dr. Stan Shih answered
17 years experience Dentistry
1-6 hours: There is variation between individuals. On average it takes a few hours and it usually wears off gradually. It also depends on the amount of anesthetic and the formulation of the anesthetic. Depending on the formulation or dosage, the numbness can last for most of the day.
Answered on Apr 24, 2015
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A 33-year-old member asked:
Dr. Mark Sawyer
36 years experience Dentistry
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.
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4 thanks
A 32-year-old member asked:
Dr. David Laha
37 years experience Podiatry
1 1/2 - 2 hours: Length of anesthesia can vary depending on a variety of factors.
A 37-year-old member asked:
Dr. Leto Quarles
22 years experience Family Medicine
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 ... Read More
A 41-year-old member asked:
Dr. David Laha
37 years experience Podiatry
1 1/2 - 2 hours: Length of anesthesia can vary depending on a variety of factors.

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