If you count on the products from Bayer to keep you feeling your best, make sure you're always paying the lowest price using these manufacturer's coupons. They're the brand behind many of the most popular over-the-counter products such as Aleve and Alka-Seltzer, as well as supplements like One-A-Day and Flintstones vitamins. Staying healthy doesn't have to be expensive when you do your shopping with these Bayer coupons.