Lidocaine 2% with Epinephrine 1:100,000 Local Anesthetic, Box of 50 - 1.7 mL Cartridges. Contains 2% Lidocaine HCl. 1:100,000 epinephrine formulation. Methylparaben-free to prevent allergic reaction. 2–4 minutes onset, lasts for 60 minutes. Lignospan Standard is a fast-acting local anesthesia that contains 2% lidocaine hydrochloride and 1:100,000 epinephrine and works by infiltration or nerve block, activating within 24 minutes and lasting for approximately 60 minutes. It is latex-free and does not contain methylparaben to prevent allergic reactions for some patients.Lignospan comes in 50 single-dose 1.7 ml cartridges in red.