Emergency and Toxicologyniche
A 49-year-old woman with a recently diagnosed adrenal pheochromocytoma requires drainage of a painful dental abscess before definitive tumour surgery. Her blood pressure is controlled with phenoxybenzamine, and the procedure will be performed with local anaesthesia. The dentist is considering a vasoconstrictor-containing preparation to prolong analgesia. Which one of the following is the safest local anaesthetic choice?