Does Roliflo Prescribed For Urinary Incontinence Have Adverse Side Effects?

Hi, My father is 79 years old and he has been prescribed Roliflo OD for a month at bed time. Please suggest what are the precautions and side effects he could have.The main problem he is suffering : he is unable to hold his urine and the urine has a very fowl smell. For a couple of days his feet are swelling too and feeling very tired... I am very much worried about him. Please help me.