Lignospan standard - Lidocaine HCl 2% and Epinephrine 1:100,000 Box of 50 - 1.7 mL. Average onset times are 2 to 4 minutes with a duration of about 60 to 90 minutes for nerve blocks/pupal anesthesia respectively. No-methylparaben formulation and latex free components help avoid allergic reactions on sensitive patients. Packages in 5 blister packs with 10 x 1.7ml glass cartridges each. **Anesthetics are non-returnable.