The lidocaine patch or Lidoderm is a prescription medication used for treating nerve pain that occurs following a case of shingles. Although most people tolerate this medication well, side effects are possible and include skin reactions, such as redness or blistering. These patches are usually applied to the skin once a day, and can be worn for up to 12 hours only in each 24-hour period. Postherpetic neuralgia treatment or shingles usually involves medication. The lidocaine patch is one of the medications approved to treat the pain associated with postherpetic neuralgia.

The lidocaine patch or Lidoderm patch is a prescription medication approved to treat post herpetic neuralgia, the nerve pain that can occur after a case of shingles. Lidocaine Patch is a local anesthetic. It works by stopping nerves from transmitting painful impulses to the brain. At high enough doses, lidocaine can cause complete numbness. However, typically only enough lidocaine passes from the lidocaine patch into the skin to cause pain relief, not complete loss of sensation.

How to Use Lidoderm Gel

  • The lidocaine patch is usually applied to the skin once a day. It can be worn for up to 12 hours only in each 24-hour period. Up to three patches can be applied at once.
  • You can cut the patch into a smaller shape if desired, but make sure to do this before removing the sticky liner.
  • Apply the patch to clean, dry, unbroken skin.
  • After removing the patch, fold it in half with the sticky side together and dispose out of the reach of children and pets.
  • For the medication to work properly, it must be used as prescribed.

Cautions before Use Lidoderm Gel

The cautions, which are to be followed, are as follows:

  • Even used patches contain a large dosage of lidocaine, enough to cause serious harm if ingested. Therefore, be sure to keep all lidocaine patches (including used patches) out of the reach of children or pets.
  • Do not apply lidocaine to broken or inflamed skin, as increased drug absorption may occur as it may increase the risk of serious side effects.
  • Avoid contact with the eye, as severe irritation may occur.
  • If you are using the lidocaine patch, it is important to know that this medication may not be safe for people with certain medical conditions such as liver disease or certain heart problems.

Lidoderm Gel Side Effects

The side effects, which may rise due to use of Lidoderm or Lidocaine Patch, are as follows:

  • Lightheadedness or dizziness
  • Confusion or drowsiness
  • Nervousness
  • Blurred or double vision
  • Vomiting
  • Shakiness, twitching,
  • Seizures
  • Euphoria which an unexplained pleasant sensation
  • Ringing in the ears or tinnitus
  • A slow heart rate or bradycardia
  • Low blood pressure (hypotension)
  • Slow or irregular breathing
  • Redness itching on the skin

Lidoderm Gel Reactions and Overdose

Taking certain medications in combination with the lidocaine patch may result in negative interactions. It has found in studies that taking this drug with certain Class I arrhythmia medications or local anesthetics may cause problems with the lidocaine patch. Drug interactions may be avoided if you inform your healthcare provider of all medications you are using, including non prescription medicines.

In case of overdose, the patient should seek medical attention.


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