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Lidocaine (Lignocaine): uses, side effects & brands
Lidocaine is the most common local anaesthetic, as injection, gel or spray. It belongs to the Local anaesthetic group. These numb a part of the body for procedures or to relieve local pain.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Local anaesthetic |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Numbing skin and tissue for stitches, dental work and minor procedures
- Gels and sprays for sore throats, mouth ulcers and before procedures
- Plasters for localised nerve pain after shingles
- Some heart rhythm emergencies (injection in hospital)
Common brand names
- India: Xylocaine, Lox, Prilox (with prilocaine)
- Worldwide: Xylocaine, EMLA (combo)
Common side effects
- Brief stinging on injection
- Numbness lasting a few hours
- Skin redness where applied
Before taking it — precautions
- Tell the doctor about allergies to local anaesthetics, heart rhythm or liver problems
- Avoid eating or hot drinks until mouth or throat numbness wears off
- Do not use large amounts of cream on broken skin or big areas
When to see a doctor urgently
- Numb tongue or lips, metallic taste, ringing in ears or confusion (toxicity) (urgent)
- Fits or a slow, irregular heartbeat (urgent)
- Swelling of face or difficulty breathing (urgent)
Not a prescription — no dose shown. The right dose of lidocaine depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Can I eat after lidocaine at the dentist?
Wait until the numbness wears off so you do not bite your cheek or tongue or burn your mouth.
Is it safe for teething babies?
Lidocaine gels are not recommended for infant teething without a doctor's advice.
Why does the injection sting?
The solution is slightly acidic; the sting fades as the numbness starts.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.