Letters

Consider national standards for daily dosages

BMJ 1994; 308 doi: https://doi.org/10.1136/bmj.308.6922.207 (Published 15 January 1994) Cite this as: BMJ 1994;308:207
  1. C M Harris,
  2. J W Cullen,
  3. D J Roberts
  1. Prescribing Research Unit, University of Leeds, Leeds LS9 9NZ.

    EDITOR, - Measuring drug volume by the number of items prescribed is unsatisfactory because of the variation in the amount per item that can and does occur; we were therefore pleased to see that M Maxwell and colleagues used the defined daily dosages set by a World Health Organisation working party as their units of volume.1,2 Some countries use their own dosages - convertible to those of the WHO when necessary - to reflect national habits. We investigated whether it …

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