Anesthetic	Equivalent concentration	Onset (minutes)	Duration (hours)	Maximal dose (mg per kg)	Maximal dose (mL per 70 kg)
Moderate duration
Lidocaine (Xylocaine)	1 or 2%	< 2	1.5 to 2	4 mg per kg, not to exceed 280 mg	28 mL (1%); 14 mL (2%)
Mepivacaine (Carbocaine)	1%	3 to 5	0.75 to 1.5	4 mg per kg, not to exceed 280 mg	28 mL
Prilocaine (Citanest)	1%	< 2	> 1	7 mg per kg, not to exceed 500 mg	50 mL
Long duration
Lidocaine with epinephrine (Xylocaine Injectable)	1 or 2% lidocaine, 1:100,000 or 1:200,000 epinephrine	< 2	2 to 6	7 mg per kg, not to exceed 500 mg	Based on lidocaine 50 mL (1%); 25 mL (2%)
Bupivacaine (Marcaine)	0.25%	5	2 to 4	2.5 mg per kg, not to exceed 175 mg	50 mL
Etidocaine (Duranest)	0.5 to 1%		2 to 3	4 mg per kg, not to exceed 300 mg	50 mL (0.5%)