In 2007, Michael Munro, a Scottish neonatologist at Aberdeen Maternity Hospital, was cleared of malpractice by the GMC Fitness to Practice panel after giving 23 times the standard dose of pancuronium to two dying neonates . In the final minutes of life, each baby was suffering from agonal gasping and violent body spasms, which was highly distressing for the parents to witness. Munro administered pancuronium to the babies after advising the parents that this would ease their suffering and could also hasten death.   It is on record that neither of the children's parents was unhappy with Dr Munro's treatment of their babies. 
Aminosteroids are a group of steroids with a similar structure based on an amino - substituted steroid nucleus.   They are neuromuscular blocking agents , acting as competitive antagonists of the nicotinic acetylcholine receptor (nAChR), and block the signaling of acetylcholine in the nervous system .    These drugs include candocuronium iodide (chandonium iodide), dacuronium bromide , dihydrochandonium , dipyrandium , malouetine , pancuronium bromide , pipecuronium bromide , rapacuronium bromide , rocuronium bromide , stercuronium iodide , and vecuronium bromide .  
Neostigmine. By far the most commonly used anticholinesterase in anaesthesia is neostigmine. This is a water-soluble quaternary ammonium compound that combines reversibly with the esteratic site of the acetylcholinesterase enzyme rendering it inactive for about 30 minutes. Neostigmine is given as an intravenous injection at a dose of mg/kg (maximum 5mg), and should be administered with glycopyrronium mg/kg or atropine mg/kg. Neostigmine starts to take effect after approximately 2 minutes but has its maximal effect at 5-7 minutes. It is excreted unchanged by the kidney and has a half-life of about 45 minutes.