Fig. (3B) Mean (SD) plasma bupivacaine concentration through 8 hours after equal mg/kg subcutaneous doses of liposome bupivacaine 2 mg/kg and bupivacaine HCl 2 mg/kg coadministered in close proximity to each other or admixed prior to administration in minipigs (Unpublished data). LB = liposome bupivacaine; SD = standard deviation.