Advil is a nonsteroidal anti-inflammatory drug (NSAID) that is used to relieve pain, fever, and inflammation. According to the Advil website [2], it is recommended to take Advil with food or milk to help prevent stomach irritation. The drug label for Advil also states that it should be taken with food or milk if stomach upset occurs [1].

The active ingredient in Advil is ibuprofen, which is absorbed more slowly when taken with food. However, taking Advil with food can also help prevent stomach irritation and reduce the risk of gastrointestinal side effects [3].

In summary, it is recommended to take Advil with food or milk to help prevent stomach irritation and reduce the risk of gastrointestinal side effects. Therefore, it is safe to take Advil after eating. However, it is important to follow the dosing instructions on the label and to consult with a healthcare provider if you have any concerns or questions about taking Advil.

Sources:
[1] Drug Patent Watch. Advil. Retrieved from https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] Advil. FAQs. Retrieved from https://www.advil.com/faqs-en/advil-pain/
[3] Drugs.com. Can you take ibuprofen on an empty stomach? Retrieved from https://www.drugs.com/medical-answers/you-ibuprofen-empty-stomach-3572019/