I think my dog ate a uristat pill can he die from this?

2 days ago my dog started acting weird. He's really quiet and isn't eating much. Today I took him out and notice his urine and feces are a fluorescent yellow color. The first thing that came to mind is he ate something. So I went upstairs to my bathroom and found 1 uristat tablet in the corner behind the door. Can he die from this? I'm definitely taking him in tomorrow when I get off work.