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What are the side effects of lidocaine?

The side effects of lidocaine are often related to the dosage form: topical cream, gel, lotion, ointment, solution; dental paste; viscous mouth solution; rectal cream; and injectable. Some mild side effects may include: backaches, coldness, double vision, hearing loss, injection site irritation, nausea, noise in the ears, sensation of heat and vomiting. Seek medical attention if these side effects become persistent or severe. Some side effects of lidocaine require immediate medical care. If you are not under the supervision of a healthcare professional, seek help for any of the following symptoms: blue lips, fingernails or skin; blurry vision; chest discomfort; cold, clammy, red or pale skin; confusion; cough; delusions about your state of health; difficulty breathing or swallowing; fast heartbeat; headaches; hives or welts; irrational fear or anxiety; irregular breathing or heartbeat; itching; lightheadedness, dizziness or fainting; low blood pressure or pulse; facial swelling; seizures; shakiness in the legs, arms, hands or feet; shortness of breath; skin rash; sleepiness; slow heart rate; trembling or shaking of the hands or feet; twitching; unconsciousness; unusual tiredness or weakness; weakness; and wheezing.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.