What is a Lidocaine Infusion?

Lidocaine is a local anaesthetic medicine that, when given slowly into a vein, can help
reduce pain in certain chronic pain conditions. It works by calming overactive pain
nerves and may improve sensitivity, discomfort and Fatigue.

Why is it used?

Lidocaine infusion may be recommended if other pain treatments have not provided sufficient relief. It is sometimes used for:

  • Neuropathic pain (nerve-related pain)
  • Widespread pain conditions such as fibromyalgia
  • Complex regional pain syndrome (CRPS)
  • Certain headache or facial pain disorders
  • Abdominal Pain
  • Pelvic Pain

 

How is the infusion given?

  • You will have a small cannula (plastic tube) placed into a vein, usually in your arm or
    hand.
  • Lidocaine is given as a slow infusion over 30–45 minutes.
  • Your heart rate, blood pressure, and oxygen levels will be monitored throughout.
  • You will usually be observed for a short period after the infusion before going home.

Benefits

  • May reduce pain intensity.
  • May improve mobility, sleep, and quality of life.
  • May help you wean pain medications
  • Effects can from few weeks to several months. Some people may require repeat infusions.

 

Is Lidocaine safe ?

Yes, lidocaine has been extensively tested and is approved for this use.

Inform us if you are pregnant, have a seizure disorder or cardiac/kidney/liver failure

Risks and Side Effects

  • Most people tolerate lidocaine well, but some may experience:
  • Light-headedness or dizziness
  • Numbness around the mouth or tongue
  • Metallic taste
  • Blurred or double vision
  • Ringing in the ears
  • Nausea

Most people tolerate lidocaine well, but some may experience:

  • Light-headedness or dizziness
  • Numbness around the mouth or tongue
  • Metallic taste
  • Blurred or double vision
  • Ringing in the ears
  • Nausea

Rare but more serious side effects include:

  • Allergic reaction
  • Seizures
  • Abnormal heart rhythms

Your clinical team is trained to recognise and treat these promptly.

 

After the procedure

  • You should arrange for someone to drive you home.
  • Rest for the remainder of the day.
  • You can eat and drink normally.
  • Avoid alcohol for 24 hours.

Follow-up

The doctor will review your response at your next appointment to decide if further infusions are appropriate.

Important Information

Please tell your doctor if you have heart disease, liver problems, heart failure, seizures, or are taking anti-arrhythmic drugs.

Inform us if you are pregnant, breastfeeding, or have allergies to local anaesthetics.

Continue your regular pain medicines unless advised otherwise.