go to this link
Special Offer From ExcedrinŽ and fill out the one question survey (Hint if you indicate that you have used Excedrin they won't send you the coupon
)
After you fill out the survey, if you don't select Excedrin, you will get the following message:
Thank you for completing our survey. To receive a FREE coupon for any Excedrin product* as our thanks to you, please fill out the information below. Please expect 3-5 days for coupon delivery.
*Valued up to $5.99
Fill out your address to get the coupon mailed to you.
Coupon for Free Excedrin 
