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LIDOCAINE

Brand Name(s) : Anbesol, Calgel, Dentinox, EMLA, Germoloids, Iglu, Lypsyl, Medijel, Minims, Perinal, Procaine, Savlon Bites and Stings Pain Relief Gel, Versatis, Xylocaine, Xyloproct
Warnings
Uses
Side Effects
Precautions
Interactions
Overdose

LIDOCAINE WARNINGS

Lidocaine for external use should be used with caution in:

  • patients who are pregnant or lactating.

Injected lidocaine should be used with caution in:

It should not be used in:

  • patients who may be hypersensitive to any of the medication's ingredients, patients who have inflammation or infection in the area to be injected or inflamed skin. Some formulations are not recommended for children and pregnant or breastfeeding women.

Also see list of precautions and interactions.

STORAGE

Some formulations need to be stored below 25°C.

LIDOCAINE USES

What is it used for?

  • Lidocaine is mostly used to numb pain. It is in a class of medicines called local anaesthetics.
  • In general this drug is used to relieve pain from minor ailments. It is applied externally to the painful area. Also, it may be injected as a local anaesthetic in small operations and procedures.

Listed below are the typical uses of lidocaine:

  • To reduce teething pain in babies
  • To relieve pain associated with mouth ulcers
  • To reduce denture irritation
  • To lessen toothache
  • To relieve sore throat
  • To reduce pain of cold sores
  • To numb pain and itching due to bites and stings
  • To relieve pain and itchiness associated with haemorrhoids
  • As a local anaesthetic for minor surgery and medical procedures

On occasion your doctor may prescribe this medicine to treat a condition not on the above list. Such conditions are listed below:

HOW TO USE/TAKE

How often do I take it?

  • Apply lidocaine to the painful area as directed by your pharmacist or doctor. Lidocaine injections usually takes place in hospital. For more information, ask your doctor.
  • Certain medical conditions may require different dosage instructions as directed by your doctor or pharmacist.

What dose?

  • Dosage is based on your age, gender, medical condition, response to therapy, and use of certain interacting medicines.

Do I need to avoid anything?

  • There is no need to avoid anything if you are using a preparation of lidocaine for external use.
  • If you receive injected lidocaine, depending on where and how it is used, it may affect your ability to drive or operate machinery. Ask your doctor for more details.

When can I stop?

  • Follow the advice of your doctor or pharmacist about when to stop this treatment.

LIDOCAINE SIDE EFFECTS

Side effects due to externally applied lidocaine:

  • Tingling

Side effects due to injected lidocaine:

  • Pain at the site of injection after the effects of the injection should have worn off
  • Numbness at the site of injection after the effects of the injection should have worn off
  • Inflammation at the site of injection after the effects of the injection should have worn off
  • Nervousness
  • Tremor
  • Blurred or double vision
  • Dizziness or drowsiness
  • Convulsions (seizures)
  • Nausea
  • Vomiting
  • Heartbeat slower than usual
  • Low blood pressure

If any of these persist or you consider them severe then your inform doctor or pharmacist.

Tell your doctor immediately if you develop any of the following symptoms after a spinal injection of lidocaine:

  • pain or numbness in the back or lower legs, trouble walking, difficulty controlling your bladder or bowels, light-headedness, faintness, or slow heart rate or pulse.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching/swelling (especially of the face/tongue/throat), dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

The Yellow Card Scheme allows you to report suspected side effects from any type of medicine (which includes vaccines, herbals and over the counter medicines) that you are taking. It is run by the medicines safety watchdog called the Medicines and Healthcare products Regulatory agency (MHRA). Please report any suspected side effect on the Yellow Card Scheme website.

LIDOCAINE PRECAUTIONS

Before taking lidocaine tell your doctor or pharmacist if you are allergic to it; or to other local anaesthetics; or if you have any other allergies.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist in case of:

  • None known

Before using this medication, tell your doctor or pharmacist your medical history, especially any of the following:

  • an allergy to lidocaine or any of the medication's ingredients.

Before using an injection of lidocaine, tell your doctor or pharmacist your medical history, especially any of the following:

  • Heart, lung or breathing disorders, kidney or liver disease, epilepsy or fits, pregnancy or breastfeeding, inflammation or infection in the area to be injected, usage of cimetidine (for stomach ulcers or heartburn), or beta-blockers, (for high blood pressure and heart problems).

Before having surgery, tell your doctor or dentist that you are taking this medication.

Does alcohol intake affect this drug?

  • Alcohol is not known to affect this drug

The elderly: lidocaine is suitable for elderly patients

Pregnancy and breastfeeding - please ensure you read the detailed information below

PREGNANCY

Some formulations of lidocaine are not safe to take if you are, or are planning to become, pregnant.

It is sensible to limit use of medication during pregnancy whenever possible. However, your doctor may decide that the benefits outweigh the risks in individual circumstances and after a careful assessment of your specific health situation.

If you have any doubts or concerns you are advised to discuss the medicine with your doctor or pharmacist.

BREAST FEEDING

Some formulations of lidocaine are not safe to take if you are breastfeeding.

It is sensible to limit use of medication during breastfeeding whenever possible. However, your doctor may decide that the benefits outweigh the risks in individual circumstances and after a careful assessment of your specific health situation.

If you have any doubts or concerns you are advised to discuss the medicine with your doctor or pharmacist.

LIDOCAINE INTERACTIONS

Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with them first.

When injected, this drug should not be used with the following medications because very serious, possibly fatal interactions may occur:

  • Cimetidine used in stomach ulcers or heartburn
  • Beta-blockers used in high blood pressure and heart problems
  • Saquinavir used to treat HIV
  • Fosamprenavir used to treat HIV

If you are currently using any of these medications, tell your doctor or pharmacist before starting lidocaine.

Before using this medication, tell your doctor or pharmacist of all prescription and non-prescription/herbal products you may use.

This information does not contain all possible interactions. Therefore, before using lidocaine, tell your doctor or pharmacist of all the products you use.

LIDOCAINE OVERDOSE

If you think you, or someone you care for, might have accidentally taken more than the recommended dose of lidocaine or intentional overdose is suspected, contact your local hospital, GP or if in England call 111. In Scotland call NHS 24. In Wales, call NHS Direct Wales. In the case of medical emergencies, always dial 999.

MISSED DOSE

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

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Source: Selected from data included with permission and copyrighted by Boots UK Limited or TicTac Communications Ltd. This copyrighted material is sourced from a licensed data provider and is not for distribution, except as may be authorised by the applicable terms of use.
CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgement of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse events, nor should it be construed to indicate that use of a particular medicine is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any medicine, changing any diet, or discontinuing any course of treatment.

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