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Dental local anaesthetic calculator

Dental LA Maximum Dosage Calculator

Calculate the selected local anaesthetic’s weight-based ceiling, cartridge equivalent and optional epinephrine-limited maximum.

The calculated value is an upper reference limit, not a recommended treatment dose.

Use the lowest effective dose. Verify the actual product label, cartridge volume, patient medical history, other local anaesthetics and any sedative or CNS-depressant medicines. Nothing entered on this page is stored.

Patient and formulation

Select the relevant reference group and the exact formulation being used.

Adult values apply to normal healthy adults unless the selected product label states otherwise.
This calculator does not support patients younger than four years.
Confirm the volume printed on the cartridge or packaging.
Enter partial cartridges as a decimal, for example 1.5.
Enter milligrams.
0 maximum complete cartridges

Maximum dose result

No calculation has been completed.

Anaesthetic per cartridge —
Anaesthetic ceiling —
Exact cartridge equivalent —
Limiting factor —

Documentation-ready calculation

Reference basis: Adult limits use the selected product’s manufacturer labelling. Paediatric limits use the American Academy of Pediatric Dentistry conservative dental dosing table. AAPD local anaesthesia guidance , DailyMed product labels , ADA cardiovascular-caution guidance .
Clinical safety note: Do not round the exact cartridge equivalent upward. Toxic effects of local anaesthetics are additive when more than one agent is used. Reduce doses when clinically required and account for topical local anaesthetic, sedation, hepatic or renal impairment, cardiovascular disease, pregnancy, extremes of age and other patient-specific factors. This calculator does not replace the current product label or professional judgement.