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Lidocaine

Published: July 26, 2026Updated: August 24, 2026

Xylocaine is a brand-name local anesthetic medication containing lidocaine that works by blocking nerve signals in the body to produce temporary numbness. It is used during medical and dental procedures to prevent pain, and is also available in formulations for treating abnormal heart rhythms and various skin conditions.

Quick summary

Xylocaine is a local anesthetic that numbs tissues to prevent pain during procedures or treat certain heart rhythm disorders.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 24, 2026Editorial policy

Key facts at a glance

RxNorm
202398
Generic
Xylocaine
Class
brand-name
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Xylocaine is used to produce local or regional anesthesia for surgeries, dental procedures, and other medical interventions. It is also indicated for the treatment and prevention of ventricular arrhythmias (abnormal heart rhythms) and may be used topically to relieve itching, burning, or discomfort from skin conditions.

As an amide-type local anesthetic, lidocaine works by blocking sodium channels in nerve fibers, preventing the generation and conduction of nerve impulses. This interruption of nerve signaling produces temporary loss of sensation in the treated area without affecting consciousness.

Xylocaine is available by prescription only and should be administered by qualified healthcare professionals. It is contraindicated in patients with certain heart conduction disorders or known hypersensitivity to amide-type anesthetics. Serious adverse effects may include cardiac depression, seizures, or allergic reactions, particularly with improper dosing or accidental intravascular injection.

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 24, 2026. · Read our editorial policy