Expiration Of Levitra I've Taken Levitra For 6 Years And Always Gotten An Erection, The Last Year I Have Not. Is There An Exp. Date?

I've taken Levitra for 6 years and always gotten an erection, the last year I have not. Is there an exp. date? - expiration of levitra

I could not get an erection after taking Levitra months ago I had an erection to another brand. I think the problem is, the expiry date has passed this business on Levitra.