Score two free boxes of Zantac next week at Rite Aid! The heartburn medicine will be on sale for $8.99. Print and use a BOGO coupon to get two boxes for $8.99 out of pocket. Later, submit for a mail-in rebate to try a box for free! According to the upcoming Rite Aid ad, the rebate form will be available by clicking here when the sale begins. Print the BOGO Zantac coupon now as it may disappear before the sale starts.