Lidocaine
Precautions
Before using lidocaine, tell your doctor or pharmacist if you are allergic to it; or to other amide type anesthetics (such as bupivacaine, prilocaine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: broken skin/infection in the area where lidocaine is to be used, heart disease, liver disease, a certain blood disorder (methemoglobinemia).
If you are going to have an MRI test, tell testing personnel that you are using this product. Some brands of this medication may contain metals that can cause serious burns during an MRI and should not be used before MRI imaging. Ask your doctor or pharmacist for questions about your particular brand.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Children may be more sensitive to the side effects of this drug.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
This medication passes into breast milk, but is unlikely to harm a nursing infant. Consult your doctor before breastfeeding.
Side Effects
Temporary redness, stinging, and a little bit of swelling may occur at the application site. If these effects last or get worse, tell your doctor right away.
If your doctor has directed you to use this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Get medical help right away if you have any very serious side effects, including: slow/shallow breathing, seizures, pale/bluish/gray skin, unusual tiredness, shortness of breath, fast/slow/irregular heartbeat.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: new/worsening rash, new or worsening itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice any other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
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