Advil is a brand name for the drug ibuprofen, which belongs to the class of nonsteroidal anti-inflammatory drugs (NSAIDs). According to Drugs.com [2], ibuprofen can be taken with antibiotics, and it does not affect the effectiveness of antibiotics. However, it is important to follow the advice of a healthcare professional regarding the use of ibuprofen with antibiotics.

Combining medications can be risky, so it is essential to consult a healthcare professional before taking any medications together. Advil's official website [3] also advises that it is essential to talk to a healthcare professional before taking Advil with other medications, including antibiotics.

In conclusion, based on the sources provided, taking Advil (ibuprofen) does not affect the effectiveness of antibiotics [2]. However, it is crucial to consult a healthcare professional before taking any medications together, including Advil and antibiotics [2][3].

Sources:
[2] https://www.drugs.com/medical-answers/take-ibuprofen-antibiotics-3121711/
[3] https://www.advil.com/advil-safety/combining-medications/