Advil is a brand name for the drug ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, inflammation, and fever [1]. According to the National Health Service (NHS), ibuprofen should be taken with or after food to reduce the risk of stomach problems [2]. Milk is not mentioned as a food that should be avoided when taking ibuprofen, but it is generally recommended to take ibuprofen with a full glass of water and not with alcohol, as it can increase the risk of stomach bleeding [2].

There is no evidence to suggest that milk makes Advil less effective. However, according to Alberta Health Services, calcium-rich foods like milk can interfere with the absorption of some medications, including antibiotics and thyroid medications, but not with ibuprofen [3].

In summary, ibuprofen (Advil) should be taken with or after food to reduce the risk of stomach problems, but there is no evidence to suggest that milk specifically interferes with its effectiveness. It is recommended to take ibuprofen with a full glass of water and avoid alcohol. Calcium-rich foods like milk can interfere with the absorption of some medications, but not with ibuprofen [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.nhs.uk/medicines/ibuprofen-for-adults/how-and-when-to-take-ibuprofen/
[3] https://myhealth.alberta.ca/Health/aftercareinformation/pages/conditions.aspx?hwid=uf8010