My husband has Parkinson s Disease with difficulty in staying dry at night. He has included on his drug list drugs he no longer has: fleurosimine and lasex. He is mixed up in what they do, and to make it worse, the urologist he just saw thought he had the latter two when he did nt. What a mess! Now I have found this doxatosin mesylate in his cache, and my husband says it was ordered to replace the first two mentioned. Should he take this instead of, in addition to, or not at all? Many thanks. It s all I can do to keep up with the various doctors and who prescribes what.