Drugs are the mainstay of medical treatment, yet there are few reports
on what constitutes ''good prescribing.'' What is more, the existing
guidance tends to imply that right answers exist, rather than recognis
ing the complex trade offs that have to be made between conflicting ai
ms. This paper proposes four aims that a prescriber should try to achi
eve, both on first prescribing a drug and on subsequently monitoring i
t. They are: to maximise effectiveness, minimise risks, minimise costs
, and respect the patient's choices. This model of good prescribing br
ings together the traditional balancing of risks and benefits with the
need to reduce costs and the right of the patient to make choices in
treatment. The four aims are shown as a diagram plotting their commone
st conflicts, which may be used as an aid to discussion and decision m
aking.