<prompt> The concentration of adrenaline used with lignocaine?1.4305555561:10,0001:20,0001:2,00,000  <response>: 1 in 1 lakh to 2 lakh pas 5mcgml is the mixing of adrenaline with lignocaine in local anesthesia. In dental procedures: 1: 50000 to 1lakh.Ref: KK Sharma 3rd ed. Pg: 222. 