We have compared the results of treatment with tamsulosin (0.4 mg once dail
y) in subgroups of patients with lower urinary tract symptoms suggestive of
benign prostatic obstruction, based on two large-scale, open-label, observ
ational studies. Improvements of IPSS or Q(max) were largely unaffected by
patient age. Patients with severe symptoms benefited at least as much from
treatment as those with mild or moderate symptoms, and the majority of pati
ents with severe symptoms were shifted to the moderate or even mild symptom
s group. We conclude that tamsulosin is effective in patients of all age gr
oups, and should be considered as an alternative to surgery even in patient
s with severe symptoms.