Whitfield H N, Doyle P T, Mayo M E, Poopalasingham N
Br J Urol. 1975;47(7):823-7. doi: 10.1111/j.1464-410x.1975.tb04063.x.
Alpha blockade at a dose which produces minimal cardiovascular effects causes a significant fall in the urethral pressure profile in man. No change in profile height has been seen following the administration of a beta blocking drug in a dose producing cardiovascular changes of a similar order of magnitude.