It is difficult to determine how much you can save on Advil online without specific pricing information from online retailers. However, the drug patent information available on Drug Patent Watch [1] suggests that generic versions of Advil are available, which may be less expensive than the brand-name version. It is important to note that the availability and pricing of generic versions may vary by location and retailer.

The official Advil website [2] does not provide pricing information, but it does offer a variety of coupons and discounts that may help you save money on your purchase. These include printable coupons, digital coupons, and promotions for bulk purchases.

A Washington Post article [3] notes that there have been shortages of children's Tylenol and ibuprofen in some areas due to supply chain disruptions caused by the COVID-19 pandemic. While this may impact availability and pricing of these medications in some locations, it is unclear how it specifically affects Advil.

In conclusion, while it is difficult to determine specific savings on Advil online without pricing information from retailers, generic versions and discounts available through the official website may help reduce costs. It is important to consult with a healthcare provider before taking any medication and to ensure that you are purchasing from a reputable source.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.advil.com/
[3] https://www.washingtonpost.com/wellness/2022/12/07/childrens-tylenol-ibuprofen-shortages-parents-advice/