Hello David (or is it Dudley?)
I see that this is your first post here. This is the best internet place to discuss prostate cancer. I have been posting here for two years. I keep coming back for many reasons. Many of the posters here (including me) have had surgery, so that is what we know most about. We do have some brachytherapy veterans and hopefully they will give you their opinions.
I have two close friends who had brachytherapy at the same time that I had surgery. We all feel a certain kinship about prostate cancer, so we talk a lot. I have learned much about brachytherapy because of our discussions.
One of my friends had some difficulties following seed therapy, while the other has been more fortunate. My friend with problems had urinary problems from the beginning. He needed to self catheterize at times and has been on and off of Flomax to help his blockage. He is currently using Flomax again.
I don't think (just a guess) that FloMax is addictive. However, like many drugs we use, they give us good results that encourage their continued use. My opinion is that as we age, we continue to have urinary problems and that certain drugs provide some relief.
I would suggest more conversations with your doctor. I know that is hard to do. In my opinion, our doctors are so busy that they just give us a quick and basic answer. I don't blame them because most of them are trying to deal with so many new serious patients every day. This forum is a good example. New guys keep coming and coming and coming. You need to be your own advocate.