How Long till Novocaine Wears off and What Side Effects

logo by Editorial Staff | Posted on August 17th, 2022

Using Novocaine is common in dental operations. You have probably experienced this while having a root canal or filling. Novocaine is essential since it can numb the target area for the procedure, making you feel less pain or no pain at all. However, there are some additional safety precautions you should bear in mind to avoid any complications from this local anesthesia.

What is Novocaine?

Almost any dental procedure can be made more bearable and pain-free with the help of local anesthesia, Novocaine, or Novocaine. Because this anesthesia prevents our nerves from delivering pain signals to the brain, we feel nothing. This is administered to numb the tooth and the surrounding area. Dentists use a little needle to deliver Novocaine.


What is Novocaine for?

For example, if you’re getting a filling, you can be given a shot of Novocaine to help ease any discomfort you might feel. Crowns and root canals are two more procedures that may call for the use of Novocaine.

For how long does Novocaine last?

Novocaine is an injectable anesthetic with the shortest duration of action. In other words, its effects on the body usually don’t last very long. Within five to ten minutes of receiving a Novocaine injection, you’ll begin experiencing numbness. For the most part, the numbing sensation lasts between 30 and 60 minutes.

It’s common practice to combine Novocaine with epinephrine (adrenaline) to extend the anesthetic’s effects. The effects of epinephrine-administered Novocaine last around 90 minutes.

Ways to quicken numbness from wearing home

Be active

Burning off the novocaine and regaining feeling can be done by increasing blood flow. The greatest way to achieve this is to get moving. Take a stroll, participate in a sport, ride a bike, or jog for a short distance.

Apply heat in the affected area

Applying heat to the affected area might also help to enhance blood flow and reduce numbness. Using a moist, warm compress could be the answer. To avoid burning yourself, avoid using a hot object against your skin.

Massage the numb area

Gentle rubbing of the area where you feel numb can help enhance blood flow and reduce numbness. Massage Don’t do this if you’re in discomfort or have swollen joints. Also, ensure that your hands are cleaned before massaging the affected area.

Novocaine: side effects and risks

People should inform their dentists of medications, including over-the-counter and prescriptions, because some prescriptions can react with Novocaine. A patient’s medical history should also be shared with their dentist to ensure the best anesthesia is used and administered in the correct dose.

Generally, Novocaine is safe. However, side effects can occur.

Common side effects

The following are some common side effects that may be gone after a few hours:

  • Dizziness
  • Headaches
  • Sleepiness
  • Twitching muscles
  • Injection site pain and tingling

Severe side effects

Severe side effects triggered by Novocain allergy, and this should be given medication attention right aware. Some severe side effects include

  • Hives
  • Itching
  • Swelling
  • Unconsciousness
  • Difficulty with breathing

Rare side effects

Rare side effects may also occur, and these include:

  • Nausea
  • Seizures
  • Vomiting
  • Trembling
  • Chest pain
  • Irregularities with heartbeat

Frequently asked questions

Can You Be Allergic to Novocaine?

Yes, you can be allergic to the anesthetic novocaine. Approximately one in every 1,000,000 individuals will get this condition at some point.

Novocaine allergy symptoms include inflammation at the injection site as well as elsewhere in the body, itching, hives, and difficulty in breathing. You may also experience a fast or irregular heartbeat. Moreover, you should look out for signs of anaphylaxis or closing of the airway, as this can be very dangerous. If you see any of these symptoms, notify your dentist right once.

Can Novocaine cause headaches?

Although novocaine has been linked to headaches, they may result from something else, such as tension or a dip in blood pressure.


Procedures that take less than 90 minutes to complete are the most prevalent in using Novocaine. In other words, this is common in dentistry. It is essential that does who undergo procedures, especially dental ones, bring up medical history as well as the medications they are taking.


Editorial Staff

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