RadiaGuard - Improving Lives Through Real Relief, Using Real IngredientsRadiaGuard - Improving Lives Through Real Relief, Using Real Ingredients

Frequently Asked Questions

RadiaGuard contains Lidocaine which is a local anesthetic (numbing medication). It works by blocking nerve signals in your body.

Lidocaine topical (for use on the skin) is used to reduce pain or discomfort caused by skin irritations such as sunburn, insect bites, poison ivy, poison oak, poison sumac, minor cuts, scratches, or burns.

Always tell your healthcare provider of all prescriptions, over the counter medications, and supplements you are taking.

Common side effects include:

  • mild irritation where the medication is applied; or
  • numbness in places where the medicine is accidentally applied.

Call your doctor at once if you have:

  • severe burning, stinging, or irritation where the medicine was applied;
  • swelling or redness;
  • sudden dizziness or drowsiness after medicine is applied;
  • confusion, blurred vision, ringing in your ears; or
  • unusual sensations of temperature.

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

An overdose of numbing medicine can cause fatal side effects if too much of the medicine is absorbed through your skin.

Do not use large amounts of lidocaine topical or cover treated skin areas with a bandage or plastic wrap without medical advice.

You should not use lidocaine topical if you are allergic to any type of numbing medicine.

To make sure lidocaine topical is safe for you, tell your doctor if you have:

  • liver disease; or
  • if you take a heart rhythm medicine.

Lidocaine topical is not expected to harm an unborn baby. Tell your doctor if you are pregnant. It is not known whether lidocaine topical passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

RadiaGuard is intended for external topical use only. Use this medicine exactly as directed on the label, or as it has been prescribed by your doctor. Do not apply this medicine in larger amounts than recommended.

Skin that is cut or irritated may also absorb more topical medication than healthy skin. Do not apply this medicine to swollen skin areas or deep puncture wounds. Avoid using the medicine on skin that is raw or blistered, such as a severe burn or abrasion. Do not cover treated skin unless your doctor has told you to.

Improper use of lidocaine topical may result in death. If ingested, rinse with water and seek immediate medical attention.

Since lidocaine topical is used when needed, you may not be on a dosing schedule. If you are on a schedule, use the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra medicine to make up the missed dose.

Lidocaine applied to the skin is not likely to cause an overdose unless you apply more than the recommended dose.

An overdose of numbing medicine can cause fatal side effects if too much of the medicine is absorbed through your skin and into your blood. Overdose symptoms may include uneven heartbeats, seizure (convulsions), slowed breathing, coma, or respiratory failure (breathing stops).

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

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