Go here to print a coupon for $5 off any Zantac product. Wal-Mart currently sells at least one size of Zantac for $4.97 which makes it free after the coupon.
Plus, you can mail in your receipt for this $5 rebate here, making this a nice money-making offer! (Please note: This rebate ends August 23, 2009. Thanks to Alice for bringing that to my attention!)
Thanks, For the Mommas!