To obtain Advil coupons for purchase, you can visit the official Advil website at advil.com/offers/ or check out coupon websites like CouponCabin that often feature discounts and deals on Advil products. Additionally, monitoring drug patent information on platforms like Drug Patent Watch can provide insights into potential discounts or promotions related to Advil. By exploring these sources, you can stay informed about available coupons and savings opportunities for Advil products.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.advil.com/offers/
[3] https://www.couponcabin.com/coupons/advil/