My dad has been recently been diagnosed with prostate cancer, and started on Bicalutamide around two weeks ago. I've just spoken to him and he's saying he feels tired, dizzy and sick. He also says it's like a 'fog is in the room' when he opens his eyes and closes them again. I've asked him if he thinks if it could be a stomach bug as there's one going round, but he seems sure that it's not. Could it be a side-effect of the medication? He doesn't know what to do as he spoke to the GP yesterday who said it's just 'one of those things' and he can't get in touch with the nurses. He doesn't know what to do, so I've advised he rings 111 and I'm going over to seem him. Any ideas of how to help him please?