Anticholinesterases and anticholinergic drugs
University Department of Anaesthesia, University Clinical Department, Duncan Building, Daulby Street, Liverpool, L69 3GA
University Department of Anaesthesia, University Clinical Department, Duncan Building, Daulby Street, Liverpool, L69 3GA
Tel: 01517 064008, Fax: 01517 065884, E-mail: jennie{at}liv.ac.uk (for correspondence)
Non-depolarizing neuromuscular block is monitored throughout surgery and antagonized at the end of anaesthesia to restore muscle tone rapidly and completely, so that patients can maintain a patent airway and adequate pulmonary ventilation. Rapid, reliable antagonism of competitive neuromuscular block only occurs if spontaneous recovery from block has commenced before antagonism. The agents commonly used to effect it are the anticholinesterases. By their inhibitory effect on the enzyme acetylcholinesterase, these drugs increase the amount of acetylcholine at the neuromuscular junction, thus overcoming the effects of any residual neuromuscular blocking agent.