Trospium
"After trying Vesicare, Enablex and Gelnique, I was giving up.  My doctor suggested trying this one...Sanctura. I saw results the very next day. I can not only sleep through the night, I am no longer running to get to the toilet in the morning. I've only been on it 5 days. No side effects yet.  But I also take stool softeners. No dry mouth...no sleepiness.  I also have given up caffeine at the same time I began this pill. Not sure if that helped as well, but I am now very happy!"