LIDOCAINE = LIGNOCAINE injectable

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    Prescription under medical supervision

     

    Therapeutic action

    • Local anaesthetic

    Indications

    • Local anaesthesia:
      • minor operations: 1% lidocaine
      • dental surgery: 2% lidocaine (plain or with epinephrine)

    Forms and strengths, route of administration

    • 1% solution in 20 and 50 ml vials (10 mg/ml), for SC infiltration
    • 2% solution in 20 and 50 ml vials (20 mg/ml), for SC infiltration

    Dosage

    • The volume to be injected depends on the surface area to be anesthetised.
    • Do not exceed:
      • Child: 5 mg/kg/injection
      • Adult: 200 mg = 20 ml of lidocaine 1% or 10 ml of lidocaine 2%

     

     

    Duration

    • One injection, repeated if necessary.

    Contra-indications, adverse effects, precautions

    • Do not administer if known allergy to lidocaine, impaired cardiac conduction.
    • When anaesthetising the extremities, inject distally (at the base), in circle, without tourniquet and without epinephrine (adrenaline).
    • Do not use lidocaine for the incision of abscesses: risk of spreading the infection.
    • Lidocaine with epinephrine (adrenaline):
      • in dental surgery, epinephrine added to lidocaine prolongs anaesthesia;
      • never use solutions with epinephrine for the anaesthesia of extremities (fingers, penile nerve block): risk of ischemia and necrosis.
    • Pregnancy: no contra-indication
    • Breast-feeding: no contra-indication

    Remarks

    • Anaesthesia is produced within 2 to 5 minutes and lasts 1 to 1.5 hours.
    • Do not confuse with lidocaine 5% hyperbaric which is reserved for spinal anaesthesia.
    • The more concentrated the lidocaine, the more localised the anaesthetic effect.
    • To simplify protocols, use lidocaine 2% with epinephrine for dental anaesthesia and lidocaine 1% without epinephrine for cutaneous anaesthesia.

    Storage

     
    –  Below 25 °C