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A few of the conditions you should let your healthcare provider know about before using the Lidoderm patch include liver disease, a recent heart surgery, or any allergies. Other warnings and precautions for Lidoderm relate to things such as potential drug interactions with other medications, possible side effects, and the safety of using the medicine if you are pregnant or breastfeeding.
What Should I Tell My Healthcare Provider Before Using Lidoderm?You should talk with your healthcare provider prior to using the Lidoderm® patch (lidocaine patch) if you have:
- Liver disease or liver failure
- Any allergies, including allergies to medications, foods, dyes, or preservatives.
- Are pregnant or thinking of becoming pregnant
- Are breastfeeding
- Have had recent heart surgery.
Specific Lidoderm Precautions and WarningsSome warnings and precautions to be aware of with Lidoderm include:
- Even used patches contain a fairly large dosage of lidocaine, enough to cause serious harm if ingested. Therefore, be sure to keep all Lidoderm patches (including used patches) out of the reach of children or pets.
- Using Lidoderm for more than 12 hours a day and/or using more patches than prescribed can result in serious toxicity. Make sure to follow your healthcare provider's directions closely and do not forget to remove Lidoderm patches.
- People with liver disease have an increased risk for serious side effects of Lidoderm, as they do not effectively metabolize lidocaine (the active ingredient in Lidoderm). Lidoderm may not be a good option for people with liver disease.
- Do not apply Lidoderm to broken or inflamed skin, as increased drug absorption may occur (increasing the risk of serious side effects).
- Do not apply heat (such as from a heating pad or electric blanket) over a Lidoderm patch, as this may increase drug absorption, increasing the risk of serious side effects.
- Avoid contact with the eye, as severe irritation may occur.
- Lidoderm can interact with certain medications (see Lidoderm Drug Interactions).
- Lidoderm is a pregnancy Category B medicine, meaning that it is probably safe for use during pregnancy, although the full risks are currently unknown (see Lidoderm and Pregnancy for more information).
- Lidocaine passes through breast milk. Therefore, if you are breastfeeding a child, check with your healthcare provider (or your child's healthcare provider) before using Lidoderm (see Lidoderm and Breastfeeding).