Local Anaesthetics

Maximum Doses

Drug	Plain	With adrenaline
Lignocaine	3 mg/kg	7 mg/kg
Bupivacaine	2 mg/kg	2 mg/kg
Ropivacaine	3 mg/kg	3 mg/kg
Prilocaine	6 mg/kg	8 mg/kg

• Dose on lean body weight, since toxicity comes from the peak plasma level
• Doses of different local anaesthetics add up
• Use less in the elderly and in hepatic or cardiac impairment
• Strength in mg/mL is the % × 10 (e.g. 1% = 10 mg/mL)

Local anaesthetic maximum dose

Maximum dose in mg and mL from the drug, strength and weight. Interactive on the website.