LIDOCAINE = LIGNOCAINE injectable

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 -