Editor, – Apropos the article 'When to use a new drug' (Aust Prescr 1998;21:67-9), I am reminded of the advice given to me by the late, beloved Sir Kenneth Noad, when I was a houseman, years ago, at Sydney Hospital. 'John, dear boy, always use a new drug when it is very new because that's when it is said to be most efficacious.'
John Watson
General Practitioner
Vaucluse, N.S.W.