1 The clinical pharmacologist in drug regulation has many roles to pla
y. These include responsibilities for the premarketing assessment of a
new product's efficacy and safety, for scrutiny of the summary of Pro
duct Characteristics, and for monitoring its performance after marketi
ng. Furthermore, the clinical pharmacologist has a subsidiary responsi
bility in examining the results of preclinical pharmacological and tox
icological studies. 2 Clinical pharmacologists in regulatory authoriti
es have one further, and crucial, responsibility-humility. From their
training and experience they will (or should) know of their own scient
ific limitations and of the necessity for seeking help and advice from
other disciplines.