tell your doctor if you have glaucoma, problems passing urine, or an enlarged prostate, as these may worsen with spiriva. also, discuss the medicines you take, even eye drops. side effects include dry mouth, constipation, and trouble passing urine. it makes me breathe easier. i can't do everything i used to do. but there's a lot i can do that i was struggling with. announcer: ask your doctor if once-daily spiriva is right for you.