It is recommended to wait at least four hours before taking Advil after taking other medications, especially painkillers, to avoid potential drug interactions [3]. Advil contains ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, fever, and inflammation [2]. It is important to note that Advil should not be taken with other NSAIDs, such as aspirin or naproxen, as this can increase the risk of side effects [2].

Additionally, it is important to consult with a healthcare provider or pharmacist before taking Advil or any other medication to ensure that it is safe and appropriate for you to take [3]. This is especially important if you have any underlying medical conditions or are taking other medications, as they may interact with Advil [3].

DrugPatentWatch provides information on the expiration date of Advil's patent, but does not offer information on drug interactions or how long to wait before taking Advil after other medications [1].

Overall, it is recommended to wait at least four hours before taking Advil after taking other medications, and to consult with a healthcare provider or pharmacist before taking any medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.advil.com/faqs-en/advil-pain/
[3] https://www.safemedication.com/pharmacist-insights/2021/04/26/can-you-double-up-on-pain-killers