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Generic name: lidocaine topical [LYE-doe-kane-TOP-i-kal]
Brand names: AneCream, Bactine, Glydo, Lidoderm, LidoRx,… show all 11 brands
Drug Class: Topical Anaesthetics

What is LidoRx?

Lidocaine acts as a local anesthetic. Lidocaine is available in many different brands and forms. This leaflet does not list all brands.LidoRx is used for minor skin irritations like sunburns, insect bites, and poisonous plants such as poison oak, poison sumac, or poison ivy. You can use it to relieve rectal pain due to hemorrhoids. This medicine can also be used to treat rectal pain caused by haemorrhoids.Lidocaine intradermal devices can be used for minor medical procedures such as venipuncture and peripheral intravenous catheterization.LidoRx can be used in other ways than those listed in the medication guide.

Side effects of LidoRx

Seek immediate medical care if you have any of these symptoms: difficulty breathing, hives, swelling in your face, lips, throat, or tongue.

LidoRx may cause serious side effects. Contact your doctor immediately if:

  • Severe headache or vomiting;
  • The medicine may cause severe irritation, burning, or stinging where it is applied.
  • Swelling or redness
  • After taking medicine, you may experience sudden dizziness or drowsiness.
  • Confusion, speech problems, vision problems, or ringing in the ears are all symptoms of confusion.
  • Unusual sensations of heat

Side effects that are common include:

  • Mild irritation at the site of application;
  • The medicine accidentally applied to the skin can cause numbness.

There may be other side effects.Call your doctor for medical advice about side effects. To report adverse effects, you can contact the FDA at 1-800-FDA-1088.

Similar/related drugs

Aspirin, Acetaminophen, Tramadol, Hydroxyzine, Naproxen, Oxycodone, and Tylenol


A skin-absorbed overdose of numbing medication can have fatal side effects.Avoid using large amounts of topical lidocaine or covering treated skin with bandages or plastic wraps without consulting a doctor.Keep used and unused skin patches away from children or pets. A child or pet that accidentally swallows or sucks a skin patch could suffer harm from the amount of lidocaine.

Before you take this drug

LidoRx should not be used if you have an allergy to any numbing medication.Overdoses can be fatal when numbing medicine is used without the doctor's advice (for example, during cosmetic procedures like laser hair removal). Overdoses have also happened in women who were given numbing medicines before undergoing a mammogram.

Be aware that cosmetic procedures can be performed without the presence of a doctor.

Tell your doctor about any of the following:

  • A blood cell disorder known as methemoglobinemia in you or your family member;
  • Liver disease
  • If you are taking a medicine for heart rhythm,

Tell your doctor whether you're pregnant or breastfeeding.Avoid areas where the mouth of your baby may be in contact with LidoRx.

How to take LidoRx?

LidoRx should be used exactly as instructed on the label or by your doctor. This medicine should not be applied in higher amounts than prescribed.The improper use of lidocaine topically can lead to death.LidoRx is available in several different forms: gel, spray, cream or lotion, ointment (liquid), skin patch, and more.Take it only by mouth. Topical medicines are only to be used on the skin. Rinse with water if this medicine enters your eyes, mouth, nose, rectum, or vagina.You should read all the instructions that are included with your medicine. If you don't understand the instructions, ask your doctor or pharmacist.Do not use more than is necessary to relieve pain or numb skin. You may absorb too many of these medications if they are applied to large areas of skin or if bandages or plastic wraps are used on the treated area. Cut or irritated skin may absorb more topical medications than healthy skin.This medicine should not be applied to areas of swollen or punctured skin. Use the medicine only on skin that has been burned or blistered.Cover treated skin only if your doctor tells you to.LidoRx can be applied using your fingertip or a cotton swab.A healthcare provider applies the Lidocaine intradermal devices.Keep away from moisture and heat at a room temperature.LidoRx patches, both used and unopened, should be kept out of reach of pets or children. A child or pet that accidentally swallows or sucks a skin patch could suffer serious harm.

What happens if I miss the dose?

LidoRx can be used as needed and you don't need to follow a schedule. If it is almost time for the next dose, skip any missed dose. Never take two doses in one go.

What happens if I overdose?

Call the Poison Help Line at 1-800-222-1222 or seek emergency medical care. If you take too much numbing medication, it can have fatal side effects.Overdose symptoms include irregular heartbeats (convulsions), slow breathing, coma, or respiratory failure.Lidocaine on the skin will not cause an overdose unless you use more than the recommended dosage.

What should be avoided?

When applying a skin patch containing lidocaine, avoid touching the sticky side.Avoid injuring the treated areas of skin while they are still numb. Avoid coming in contact with surfaces that are very hot or cold.

Interaction with other drug

Other drugs that you take are unlikely to affect the medicine applied to your skin. Many drugs interact with each other. Inform your healthcare providers of all medications you take, including prescriptions, over-the-counter medicines, vitamins, and herbal products.