<Ul> <Li> Saxitoxin </Li> <Li> Neosaxitoxin </Li> <Li> Tetrodotoxin </Li> <Li> Menthol </Li> <Li> Eugenol </Li> <Li> Cocaine </Li> </Ul> <P> Naturally occurring local anesthetics not derived from cocaine are usually neurotoxins, and have the suffix - toxin in their names . (1) Unlike cocaine produced local anesthetics which are intracellular in effect, saxitoxin, neosaxitoxin & tetrodotoxin bind to the extracellular side of sodium channels . </P> <Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2014) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2014) (Learn how and when to remove this template message) </Td> </Tr>

Which of the following drugs was used by modern man as the first local anesthetic for surgery