RT Journal Article SR Electronic T1 Bupivacaine JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 81 OP 82 DO 10.1136/dtb.5.21.81 VO 5 IS 21 YR 1967 UL http://dtb.bmj.com/content/5/21/81.abstract AB Bupivacaine (Marcain - DFE), which is advocated as a long-acting local anaesthetic, was synthesised in Sweden in 1957. Chemically bupivacaine and its predecessor mepivacaine (which is not available in this country) are related to lignocaine. Bupivacaine differs from mepivacaine in having a butyl instead of a methyl group attached to the piperidyl ring.