the duration of intradermal anaesthesia produced by bupivacaine mixed with carbonated lidocaine was 114 +/- 56 ( mean +/- 1 sd ) minutes and was not significantly shorter than the duration of the bupivacaine alone , at 125 +/- 70 minutes , or duration with the mixture of bupivacaine and lidocaine hydrochloride , which was 112 +/- 41 minutes .
C0023660
lidocaine
C0546869
lidocaine