Advil, also known as ibuprofen, is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain and reduce fever. It works by blocking the production of certain chemicals in the body that cause inflammation. However, taking Advil with blood thinners can increase the risk of bleeding and other complications.

According to the Harvard Health Publishing article [2], combining blood thinners and NSAIDs like Advil can increase the risk of bleeding and other complications. This is because blood thinners, such as warfarin and aspirin, work to prevent blood clots by interfering with the body's ability to form clots. NSAIDs, on the other hand, can interfere with blood clotting by inhibiting the production of certain chemicals in the body. When taken together, the risk of bleeding can increase significantly.

The Advil website [3] also cautions against taking Advil with blood thinners, stating that individuals who are taking blood thinners or have a bleeding disorder should consult with a doctor before taking Advil. The website also advises individuals to speak with a doctor before taking Advil if they have a pre-existing medical condition or are taking other medications.

In summary, based on the provided sources, it is not recommended to take Advil with blood thinners. The combination of these medications can increase the risk of bleeding and other complications. Individuals who are taking blood thinners or have a bleeding disorder should consult with a doctor before taking Advil. It is always important to speak with a doctor before taking any medication, especially if you have a pre-existing medical condition or are taking other medications.

Sources:
[2] https://www.health.harvard.edu/diseases-and-conditions/bad-mix-blood-thinners-and-nsaids
[3] https://www.advil.com/advil-safety/pre-existing-health-conditions/