Are Novocaine Side Effects Serious? Things to Keep in Mind

Novocaine or Novocain, also known as Procaine, is a local anesthetic drug that is used in medical and dental procedures like wisdom teeth removal and cavity fillings. Although, this anesthetic drug is considered safe for medical use. In some cases, novocaine side effects are seen such as numbness, tingling sensations, dizziness, bruising of tissue, etc.

Usually, novocaine side effects are of mild in nature and may go away in no time. But in rare cases, there could be serious adverse reactions of novocaine such as convulsions, anxiety, drowsiness, headaches, swelling, etc.


Novocain is the most popular anesthetic drug used in dentistry. (1)

Side effects of novocaine

Novocaine is mostly preferred by dentists because it quickly acts and wears off within hours of the procedure, with a low incidence of side-effects. Just like any other medication, there is still a slight chance that side effects may occur after injecting with Novocaine.

Before being injected with Novocaine, your dentist will ask you about any medications you are using in order to help minimize the risk of interactions and side effects which may appear later.

Don’t forget to tell your dentist about any health conditions you currently have before proceeding for treatment as this will help your dentist to decide whether it is safe to use Novocaine injections while performing dental work.

Common side effects

Having mild side effects are the most common. These side effects are harmless and go away quickly.  The mild side effects of novocaine may include:

  • Dizziness and blurred vision.
  • Swelling, pain, bruising, tenderness and even rash can occur at the site of injection.
  • Numbness or tingling sensation.

Severe side effects

Novocain rarely shows adverse side effects. Severe side effects are more likely to occur if the patient is dosed too heavily or if the medication is given too frequently.

The rescue equipment should always be nearby to detox the effects of novocaine when the serious side effects occur. Here are some signs that may indicate that you are experiencing adverse effects of novocaine.

Consult your doctor immediately if you find any of these symptoms after novocaine injection –

  • Depression of neural activity. (2)
  • Respiratory tract arrest.
  • Hypotension or hypertension.
  • Slowing down of the heartbeat and even cardiac arrest in extremely severe cases.
  • Nausea or feeling of vomiting.

Allergic reactions

In rare cases, the patient may experience an allergic reaction to Novocaine and more severe side-effects such as difficulty in breathing, swelling, hives, or blockage of the throat.

Serious reactions may get fatal. Examples of an allergic reaction after administration of the anesthetic:

  • Cutaneous lesions after administration of novocaine.
  • Urticaria (red raised lesions on the skin).
  • Trouble breathing.
  • Rash and skin itching.
  • Swelling of the face, throat, tongue or lips.
  • Asphyxiation or anaphylactic shock.

What a dentist can do?

Your dentist should be well aware of the side effects of novocaine so to prevent any risk. The dentist also knows what is to be done if you are having a reaction during a procedure so he can take proper action in order to counteract the effects of novocaine.

If you happen to get any of the side effects of novocaine during treatment, your dentist may stop and send you off for medical care then continue with a different type of local anesthetic once the novocaine effects disappear.

Your dentist should keep this in your chart is you exhibit any side effects to novocaine.

How to detox the body from anesthesia quickly

The after-effects of the anesthesia after the surgery go quickly in some hours but some people are unable to metabolize the anesthetic drug and experience serious side effects like dizziness, nausea, allergic actions.

The ultimate idea of flushing out anesthesia is to make it detoxify in the liver and get it excreted by kidneys. By using several methods quickly after the appearance of the side effects may help to bounce back the anesthetic, like –

  • Drinking water – Not having enough fluids or water in your body can make elimination of toxins difficult resulting in some side effects.
  • Milk thistle (Silybum marianum) – This plant is most often used for detox of anesthetics from the body as it prevents the depletion of natural antioxidants of the liver which are involved in detoxification.
  • Turmeric – It has a substance called curcumin which has detoxifying, anti-inflammatory, and antioxidant properties and enhances the liver function.
  • High-potency multivitamin – Start taking high-potency multivitamin and mineral formula before and after taking anesthesia, it has got a verity of nutrients which have anti-oxidants properties required for detoxification and also some nutrients eliminate heavy metals, anesthetics, and other drugs.

Things to keep in mind

Serious side effects can appear from the overdose of Novocain, but the dentist will give you just the calculated amount of Novocain for best results. Using epinephrine along with Novocain reduces the chances of an overdose of Novocain in the body.

Novocain is administered with an injection inside the gums or inside of cheek which can cause a little pain and may make you feel uneasy. After admiration of Novocain, you may feel a burning sensation followed by a tingling sensation.

The Doctor first asks about your medical history before giving you Novocain, you doctors would want to know if you have any liver problems, bleeding or blood clotting problems, a neuromuscular disease such as myasthenia gravis or any other related medical condition.


Over to you

Novocaine side effects are mostly mild in nature and may go away on its own quickly. However, do not take Novocain without your doctors or dentist consent. It’s not known if Novocain is harmful to unborn baby.

But if you are pregnant or breastfeeding, then do inform your dentist or doctor before any procedure.


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