Bupivacaine 0.25% encapsulated by multilamellar liposomes was administ
ered epidurally to a patient suffering pain associated with lung cance
r and the effect compared with a plain bupivacaine solution of the sam
e concentration. Complete analgesia was produced for 4h with the plain
solution and 11h with the liposomal formulation. No motor blockade or
haemodynamic instability was observed with the liposome-associated bu
pivacaine.