Therapeutic Action
Local anaesthetic
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Drug reference
Local anaesthetic
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Local anaesthesia: minor operations: 1% lidocaine dental surgery: 2% lidocaine (plain or with epinephrine)
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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
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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
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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%
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One injection, repeated if necessary.
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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.
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– Below 25 °C
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200 mg = 20 ml of lidocaine 1% or 10 ml of lidocaine 2%
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