4% Lidocaine: Uses, Side Effects, and Drug Interactions

Brand names: Lipo Flavonoid Ear Pain Relief Drops with 4% Lidocaine

# 4% Lidocaine Overview Lidocaine is a numbing medicine that comes in a 4% strength. This medication is used to reduce pain and itching on your skin. It works by blocking pain signals in the area where you apply it. You might use this medicine for minor cuts, scrapes, insect bites, or other small skin problems that hurt or itch. It's a topical medicine, which means you put it directly on your skin instead of swallowing it or getting a shot. Before using 4% lidocaine, you should know some important safety information. Never use more than the amount your doctor tells you to use, and don't use it on large areas of skin or broken skin unless a doctor says it's okay. If you're allergic to lidocaine or have certain heart problems, talk to your doctor before using this medicine. Keep this medicine away from children and pets, and wash your hands after using it (unless you're treating your hands). If your pain or itching doesn't get better in a few days, or if you have signs of an allergic reaction like rash or swelling, stop using it and call a doctor right away.

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Most Reported Side Effects (FAERS)

  • PALLOR7 reports
  • DEATH4 reports
  • ABDOMINAL PAIN2 reports
  • CHILLS2 reports
  • CONFUSIONAL STATE2 reports
  • DRUG INEFFECTIVE2 reports
  • ILLNESS2 reports
  • OFF LABEL USE2 reports
  • PAIN2 reports
  • PNEUMONIA2 reports

Source: FDA Adverse Event Reporting System (FAERS). Voluntary reports do not establish causation.

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SafeCheck provides drug interaction information from FDA-approved product labeling (openFDA). This is for informational purposes only and is not medical advice. Always consult your healthcare provider before making medication decisions.