Okay..I Have A Resident Who Has Been On Oxybutynin For

okay..I have a resident who has been on oxybutynin for some time now and he has had several UTI's. His PCP just discontinued the use of the oxybutynin and I'm not sure why, especially when he has a current UTI and on antibiotics. Wouldn't we want to keep him on this medication? He is non-ambulatory and incontinent of both bowel and bladder and over the age of 65years.