Fig. 2. Binding of racemic bupivacaine ( circles ), levobupivacaine ( diamonds ) and ropivacaine ( triangles ) to Intralipid (Fresenius Kabi; Paris, France) ( dark filled symbols ), and to Medialipide (B-Braun; Boulogne, France) ( light filled symbols ). Data are those of the 2 to 1,000 mg/l binding to 1% emulsions experiment.