RadiaGuard

RadiaGuard is a local anesthetic (numbing medication). There are many brands and forms of lidocaine topical available. Not all brands are listed on this leaflet.

RadiaGuard (for use on the skin) is used to provide temporary relief of muscle or joint pain or discomfort.

RadiaGuard can be used to prevent or relieve pain during certain medical procedures, such as drawing blood, placing a breathing tube, inserting a urinary catheter, or putting a small tube into a vein to give fluids or medications.

RadiaGuard may also be used for purposes not listed in this medication guide.

An overdose of numbing medicine can lead to deadly side effects if too much of the medicine gets into your body through your skin.

Use only the smallest amount of RadiaGuard that you need. Do not use large amounts of lidocaine topical, and do not cover the treated skin areas with a bandage or plastic wrap without talking to your doctor first.

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

Fatal overdoses have happened when numbing medicines were used without the advice of a medical doctor (like during a cosmetic procedure such as laser hair removal). Be aware that many cosmetic procedures are done without a medical doctor present.

Do not use certain RadiaGuard cream brand forms if you have tuberculosis, a fungal skin infection, herpes simplex, chickenpox, or to treat teething pain in infants and young children.

Tell your doctor if you have or have ever had:

• a genetic enzyme deficiency called glucose-6-phosphate dehydrogenase (G6PD) deficiency;
• pseudocholinesterase deficiency (a genetic disorder);
• sepsis (a severe reaction to an infection);
• severe sunburn, rash, or another skin condition;
• a bleeding disorder, or low levels of platelets in your blood;
• blood circulation problems;
• heart or lung problems; or
• liver disease.

You may develop methemoglobinemia, a rare blood disorder that prevents tissues from receiving enough oxygen. Ask your doctor about your risk.

Tell your doctor if you are pregnant or breastfeeding.

If you breastfeed, avoid applying this medicine to your nipple area.

Do not apply this medicine to a child without medical advice. Some brand forms of lidocaine topical are not approved for use by anyone younger than 12 years old.

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

RadiaGuard may cause serious side effects. Call your doctor right away if you experience:

• vomiting, fever, chills, sore throat, body aches, unusual tiredness, loss of appetite, bruising or bleeding;
• sudden dizziness or drowsiness after applying the medicine;
• severe burning, pain, swelling, itching, irritation, blistering, or any other skin injury where the medicine was applied;
• severe or worsening numbness, hot or cold sensations;
• anxiety, tremors, feeling nervous, restless, or excited;
• confusion, vision problems, ringing in your ears; or
• pale, gray, or blue skin, headache, rapid heart rate, or shortness of breath.

Common side effects of RadiaGuard may include:

• mild irritation or skin changes where the medicine is applied; or
• numbness in areas where the medicine is accidentally applied.

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

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed. Do not apply RadiaGuard in larger amounts or for longer than recommended.

Your dose needs may change if you switch to a different brand, strength, or form of this medicine. Avoid medication errors by using exactly as directed on the label, or as prescribed by your doctor.

If used for a medical procedure follow your doctor's instructions. Certain formulations are applied only by a healthcare provider.

Read and carefully follow any Instructions for Use provided with your medicine. Ask your doctor or pharmacist if you do not understand these instructions.

Use the smallest amount of medicine needed to numb the skin or relieve pain. Your body may absorb too much of this medicine if you use too much or if you apply it over large skin areas.

Do not bandage treated skin or expose it to heat.

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.

If you are using this medicine for temporary pain relief, call your doctor if your symptoms do not improve after 7 days, if it gets worse, or if it clears up and then comes back in a few days.

RadiaGuard spray is flammable. Do not use near high heat or open flame. Do not smoke until the spray has completely dried on your skin.

Store at room temperature away from moisture and heat.

RadiaGuard is used as needed. If you miss a dose while on a schedule, skip it. Do not take two doses at the same time.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222 if anyone has accidentally swallowed the medicine.

An overdose of numbing medicine can lead to serious side effects if too much is absorbed through your skin and into your blood. Symptoms of an overdose may include uneven heartbeats, seizures, slow breathing, coma, or respiratory failure (breathing stops).

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

Do not get RadiaGuard in your eyes. If contact happens, rinse with water.

Avoid using other medications on the areas you treat with RadiaGuard unless your doctor tells you to.

RadiaGuard may lead to methemoglobinemia. Your risk might increase if you are also taking certain other medicines, including local anesthetics or medicines for infections, inflammatory conditions, seizures, heart issues, high blood pressure, cancer, or malaria.

Other medications can impact RadiaGuard, including both prescription and over-the-counter medicines, vitamins, and herbal products. Inform your doctor about all other medicines you are using.