As single laevo-enantiomers,ropivacaine and levobupivacaine which have been generally researched are attracting extensive attention for their better anaesthetic effect and less system toxicity.
The British Formula One Racing driver Jenson Button and his wife have been burgled while on holiday in France by thieves who apparently pumped anaesthetic gas into their villa.
But it is redheads who have long been the more feared, revered, loathed and loved; hence the rumour that it takes more than an average dose of anaesthetic to sedate a carrot-top.
Then I realised that Holmes is a cocaine addict and Freud had been an early proponent of cocaine, starting as a use for anaesthetic during eye surgery, but he also was a user.