Lignocaine Injection 2%

About Lignocaine Injection 2%

Lignocaine Injection 2% Uses

• Local anesthesia for dental nerve blocks and deeper dental work
• Numbing before minor surgeries needing a stronger effect
• Deeper tissue infiltration and regional nerve blocks
• Local anesthesia for procedures expected to take longer
• Numbing before incision and drainage of abscesses

Lignocaine Injection 2% Benefits

• Delivers stronger, deeper anesthesia than the 1% strength
• Longer working time of roughly 60 to 90 minutes per dose
• Reliable choice for procedures that need more than surface numbing
• Fast onset within 2 to 5 minutes of injection
• Reduces the need for repeat top up doses during longer procedures

What Experts Say

Lignocaine also works by blocking sodium channels along nerve fibers, preventing pain signals from traveling to the brain. The 2% concentration delivers more drug per milliliter, which physicians use when a procedure needs deeper tissue penetration or a longer working time.

This strength is commonly chosen for dental nerve blocks and minor surgeries that go beyond the skin surface, where a lower concentration might not numb the area completely. Because each milliliter carries twice the drug of the 1% strength, doctors calculate the total volume carefully to stay within the maximum safe milligram per kilogram dose.

The trade off for stronger, longer lasting anesthesia is a narrower safety margin, so this strength is generally reserved for procedures that genuinely need it rather than used routinely for very minor work. Careful aspiration technique before injecting reduces the chance of the drug entering a blood vessel directly, which is the main risk with any local anesthetic at higher concentration.

Drug Class

• Amide type local anesthetic

Lignocaine Injection 2% formula

• Lignocaine Hydrochloride (Lidocaine Hydrochloride)

Available forms

• Injection

How to use Lignocaine Injection 2%?

• Administered only by a doctor or qualified healthcare professional through local infiltration or nerve block technique
• Each ampoule contains 2ml of 2% Lignocaine solution, supplied in a box of 100 ampoules for clinic and hospital use
• Used for more involved procedures such as dental nerve blocks, deeper tissue anesthesia and minor surgical interventions needing a stronger effect
• Numbness typically begins within 2 to 5 minutes and can last 60 to 90 minutes depending on the site
• Maximum safe adult dose is generally capped around 4.5mg per kg body weight without adrenaline
• Not meant for self injection at home under any circumstance

Drug Interactions

• Other local anesthetics used at the same time can increase the risk of systemic toxicity
• Class I antiarrhythmic drugs like amiodarone can add to Lignocaine's effect on heart rhythm
• Cimetidine and beta blockers can slow down how fast the body clears Lignocaine, raising toxicity risk
• Combining with other sedatives or CNS depressants can increase drowsiness
• Use with strong CYP3A4 inhibitors may raise Lignocaine blood levels

Risks and warnings

• Avoid if you have a known allergy to Lignocaine or other amide type local anesthetics
• Higher concentration means the total dose given must be carefully calculated to avoid systemic toxicity
• Use with caution in patients with heart rhythm problems, low blood pressure or heart block
• Caution advised in liver disease since Lignocaine is broken down by the liver
• Should not be injected into infected or inflamed skin
• Accidental injection into a blood vessel can cause dizziness, ringing in the ears, blurred vision or seizures
• Use only under medical supervision during pregnancy and breastfeeding

Lignocaine Injection 2% Side Effects

• Pain, redness or swelling at the injection site
• Prolonged numbness or tingling in the treated area
• Dizziness or lightheadedness
• Headache
• Nausea or vomiting
• Ringing in the ears (tinnitus)
• Blurred vision
• Drowsiness
• Rare allergic reactions like rash, itching or swelling
• Rare seizures or irregular heartbeat with accidental intravascular injection, more likely at this higher concentration

Storage Conditions

• Store below 25°C in a cool, dry place away from direct sunlight
• Do not freeze the ampoules
• Keep ampoules in their original box until ready to use
• Discard any ampoule that looks discolored, cloudy or has visible particles
• Keep out of reach of children