Score free Delsym Cough Lozenges at Dollar Tree! Purchase a box and use a new $2.25 coupon. The coupon value exceeds the price of the item, but according to the Dollar Tree coupon policy, "Coupons are accepted for over a dollar on a single Item. However, the coupon value will be reduced to the purchase price of the item." Print a copy of the Dollar Tree coupon policy to show your cashier in case there is an issue.
Remember, inventory varies by store.