According to the sources provided, there is no recommended frequency for taking Advil with aspirin. Advil is a brand name for ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain and reduce fever [1]. Aspirin is also an NSAID used to relieve pain and reduce inflammation [2]. However, taking both Advil and aspirin together may increase the risk of side effects, such as stomach bleeding and ulcers [3]. Therefore, it is important to talk to a healthcare provider before taking both medications together. Additionally, it is important to follow the recommended dosage instructions for each medication separately and not to exceed the maximum daily dose [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.medicalnewstoday.com/articles/322793
[3] https://fherehab.com/learning/aspirin-and-nasaid