Pedialyte is again offer a coupon for a FREE bottle of Pedialyte redeemable at your local Walmart for a limited time. To get this offer, visit their promotional site and provide and email and phone number. You will be sent a text almost instantly with direction on how to redeem your coupon. To redeem: checkout with qualifying bottle of Pedialyte, select the pay with credit card option and then scan the barcode that was provided to you. It should discount your purchase up to $5.78.