in a randomized double-blind trial in 30 patients receiving lumbar epidural anaesthesia , the onset and duration of sensory blockade with 0.375 per cent bupivicaine was compared with a mixture of 0.375 per cent bupivicaine and one per cent lidocaine hydrochloride and a mixture of 0.375 per cent bupivicaine and one per cent carbonated lidocaine .
C0546869
lidocaine hydrochloride
C0023660
lidocaine