THE DOSAGE USED IN VARIOUS LOCAL ANAESTHETIC PROCEDURES VARIES WITH THE SITE OF INJECTION AND THE PROCEDURE USED. THE RECOMMENDED MAXIMUM SINGLE DOSE IN ADULTS FOR PRILOCAINE HYDROCHLORIDE IS 400 MG IF USED ALONE, OR 300 MG IF USED WITH FELYPRESSIN. DOSES SHOULD BE REDUCED IN ELDERLY OR DEBILITATED PATIENTS. THE DOSE FOR CHILDREN OVER 6 MONTHS OF AGE IS UP TO 5 MG/KG. FOR DENTAL INFILTRATION OR DENTAL NERVE BLOCKS, THE USUAL ADULT DOSE OF PRILOCAINE HYDROCHLORIDE WITHOUT FELYPRESSIN IS 40 TO 80 MG (1 TO 2 ML) AS A 4% SOLUTION; CHILDREN UNDER 10 YEARS GENERALLY REQUIRE ABOUT 40 MG (1 ML). SIMILAR DOSES OF THE 4% SOLUTION WITH ADRENALINE (1:200 000) MAY BE USED FOR MOST ROUTINE DENTAL PROCEDURES. THE USUAL ADULT DOSE OF PRILOCAINE HYDROCHLORIDE WITH FELYPRESSIN 0.03 INTERNATIONAL UNITS/ML IS 30 TO 150 MG (1 TO 5 ML) AS A 3% SOLUTION; CHILDREN UNDER 10 YEARS GENERALLY REQUIRE 30 TO 60 MG (1 TO 2 ML).
A EUTECTIC MIXTURE OF PRILOCAINE BASE 2.5% AND LIDOCAINE BASE 2.5% (SEE SURFACE ANAESTHESIA, ) IS APPLIED AS A CREAM UNDER AN OCCLUSIVE DRESSING TO PRODUCE SURFACE ANAESTHESIA OF THE SKIN BEFORE PROCEDURES REQUIRING NEEDLE PUNCTURE, SURGICAL TREATMENT OF LOCALISED LESIONS, AND SPLIT SKIN GRAFTING; IT HAS BEEN USED SIMILARLY, BUT WITHOUT AN OCCLUSIVE DRESSING, BEFORE REMOVAL OF GENITAL WARTS.