About lidocaine
Local anesthetic; sodium-channel blocker
Used for
- Relief of pain from postherpetic neuralgia (shingles-related nerve pain).
Usual adult dose
Apply up to three patches to painful skin for up to 12 hours within each 24-hour period.
Common side effects
- Skin redness
- Burning or irritation
- Itching
- Rash
Important warnings
- Use only on intact skin; avoid eyes and mouth.
- Do not use external heat over the patch.
- Large-area or prolonged use can cause serious lidocaine absorption.
- Avoid use with allergy to local anesthetics of the amide type.
Pregnancy
Human pregnancy data are limited; use only when clearly needed.
Breastfeeding
Lidocaine enters breast milk in small amounts; avoid infant contact with treated skin.
Interactions
- Other lidocaine products may increase blood levels.
- Class I antiarrhythmics, such as mexiletine, may increase side effects.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.