Amazon has select Luden's Throat Drops on sale listed below when 'clip' the 20% off coupon located on the product page and checkout via Subscribe & Save (select the later date from the "First Delivery On" menu). Shipping is free. Thanks fooligar
Note, must be logged in to your account to clip coupon; coupons are typically limited to one per account. You may cancel Subscribe & Save any time after your order ships.