What is the difference between finasteride and dutasteride for BPH management?

5-alpha reductase . Similar drugs from the same class (5-alpha reductase inhibitors) cause shrinkage of prostate glandular tissue over time. Finasteride is now generic (previously proscar), while Avodart (dutasteride) is not.
Avodart (dutasteride) more potent. Avodart (dutasteride) effects can be seen fairly quickly, and it has always been the "new and improved" choice in the prostate enlargement size-reduction arena. Maintenance therapy on this medication can be effective enough to allow you to avoid a prostate roto-rooter surgery!
Bph. None really, but if diagnosed properly when symptoms first appear, 5-alpha reductase medications (finasteride or avodart) can result in significant shrinkage of the prostate and therefore to some degree halt or reverse the process causing symptoms. Avodart (dutasteride) has a much longer half life and may be a better choice if you tend to miss days of taking your meds.