When taking Advil, which contains ibuprofen, it is generally recommended to take it with food or a glass of milk to help prevent stomach upset. This is because ibuprofen can irritate the stomach lining, potentially leading to issues like indigestion or ulcers. The NHS website suggests taking ibuprofen with or after food to minimize the risk of side effects. It is advisable to follow the instructions provided on the packaging or by a healthcare professional to ensure safe and effective use of Advil. Additionally, the Drug Patent Watch website can provide information on Advil's formulation and patents, but for specific guidance on usage, it is best to refer to reputable medical sources like the NHS or consult with a healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.advil.com/faqs-en/advil-pain
[3] https://www.nhs.uk/medicines/ibuprofen-for-adults/how-and-when-to-take-ibuprofen/