This Walgreen’s Booklet called ABC's: When It Comes to Relief Know Your ABC's, can be found in stores, and contain Manufacturer coupons.  Here is what can be found inside:
$1.00/1 Benadryl Allergy

$1.00/1 Benadryl Cream, Gel or Spray product
$1.00/1 Children’s Benadryl
$2.00/1 Children’s Zyrtec
$2.00/1 Sudafed
$1.00/1 Tylenol Cold or Sinus product
$2.00/1 Visine
$2.00/1 Zyrtec 12 ct or larger or Itchy Eye Drops

Expiration Date: 06/01/10

Thanks iheartwags!