Local anesthetic maximum dose
ASRA 2018 local anesthetic maximum dose: per-agent mg/kg ceiling times weight (100 kg cap), converted to a maximum volume at the entered solution concentration.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Agent
- Lidocaine plain (4.5 mg/kg)
- Weight
- 70 kg
- Solution concentration
- 1 %
Result: Lidocaine plain: maximum 300 mg (absolute cap binds) = 30 mL of 1%.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Agent
- Weight
- Solution concentration
How this is calculated
Neal JM, et al. ASRA practice advisory on local anesthetic systemic toxicity. Reg Anesth Pain Med. 2018;43(2):113-123. Per-agent mg/kg ceilings (lidocaine 4.5 plain / 7 with epinephrine) and an absolute total-dose cap; the lower binds. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.