This part of our study presents results of laboratory evaluations in patients with BPH during treatment with prazosin and
doxazosin. After 72 weeks serum PSA and PAP fell by 40.2% and 82%, respectively. Blood urea nitrogen concentration decreased
by 28.5% and serum creatinine by 20.8%. The results confirm long-term favourable effects of the therapy of patients with BPH.
As described in Part One, Vol. 27, No. 3 (1995).