Expired!
Vicks Nyquil is offering a money back guarantee right now here. “If you are not completely satisfied with your Vicks NyQuil Original Liquid or Cherry Liquid purchase, Vicks will send you a full refund.
Once we receive your refund request, you will be mailed a check for the purchase price of the NyQuil Original or Cherry Liquid, plus postage. Please allow 6 to 8 weeks to process your claim. The offer is valid in U.S. only and limited to one refund per name, household, or address, through June 30, 2010. Offer is valid if your envelope is postmarked within 30 days of purchase.”