My nephew is special child and bed ridden. He can not talk. He has problem of urine retention. The first urine some time he pass very late. If he wakes up at 9.0 AM then first urine he pass some time very late ( at 5.0pm). As he can't talk he cries till he pass urine. Once to first in unine is passed, there is no problem for passing second urine. He was diagnosed as bladder muscles weak. Which medicines we should give so that he will pass urine without problem.