“…Proven allergy to amide local anaesthetics is occasionally encountered, involving prilocaine, mepivacaine, lignocaine and bupivacaine (Brown, Beamish and Wildsmith, 1981;Fisher and Pennington, 1982;Yeoman, 1982), while cross-reactivity within the group is by no means universal (de Shazo and Nelson, 1979;Fisher and Pennington, 1982). The majority of cases involve dental blocks, although lignocaine given by many routes has been implicated in respiratory distress syndrome (Howard, Mohsenifar and Simon, 1982;Promisloff and DuPont, 1983;Woelke and Tucker, 1983;Rooke and Milne, 1984). I have found no record of a verified allergic reaction to extradural bupivacaine.…”