Based on the provided sources, there is no specific information available regarding the discount for bulk purchases of Advil. The sources provide information about Advil's patent status, potential deals being studied by the manufacturer, and offers available on the official Advil website. However, none of these sources directly mention or provide details about bulk discounts for Advil.

The first source, Drug Patent Watch, provides information about the patent status of Advil but does not mention any discounts or pricing details [1].

The second source, Bloomberg, discusses potential deals being studied by the manufacturer of Advil, Haleon. However, it does not provide any specific information about bulk discounts [2].

The third source, the official Advil website, lists various offers available for consumers, but again, there is no specific mention of bulk discounts [3].

In conclusion, based on the provided sources, there is no information available regarding the discount for bulk purchases of Advil. It is advisable to contact the manufacturer or retailers directly for more specific information on bulk discounts, as pricing and discounts can vary depending on the location and specific promotions.

Sources:
[1] Drug Patent Watch. Advil. Retrieved from https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] Bloomberg. Advil Maker Haleon Is Said to Study Potential Deals to Bulk Up. Retrieved from https://www.bloomberg.com/news/articles/2023-01-31/advil-maker-haleon-is-said-to-study-potential-deals-to-bulk-up
[3] Advil. Offers. Retrieved from https://www.advil.com/offers/