Advil is a nonsteroidal anti-inflammatory drug (NSAID) that is commonly used to relieve pain, fever, and inflammation. According to Drug Patent Watch [1], the active ingredient in Advil is ibuprofen. While Advil is not a blood thinner, it can interact with blood thinners and increase the risk of bleeding. Blood thinners are medications that help prevent blood clots, which can lead to serious health problems such as stroke or heart attack.

According to Harvard Health Publishing [2], taking NSAIDs such as Advil with blood thinners like warfarin, dabigatran, or rivaroxaban can increase the risk of bleeding. NSAIDs can interfere with the blood-thinning effects of these medications, making them less effective. This can lead to an increased risk of blood clots and stroke.

It is important to note that not all pain relievers are created equal when it comes to interacting with blood thinners. As GoodRx [3] explains, acetaminophen (Tylenol) is a safer option for people taking blood thinners. However, it is still important to consult with a healthcare provider before taking any medication, including over-the-counter pain relievers, while on blood thinners.

In summary, Advil contains ibuprofen and is not a blood thinner, but it can interact with blood thinners and increase the risk of bleeding. It is important to talk to a healthcare provider before taking any medication, including over-the-counter pain relievers, while on blood thinners. Acetaminophen (Tylenol) is a safer option for people taking blood thinners.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.health.harvard.edu/diseases-and-conditions/bad-mix-blood-thinners-and-nsaids
[3] https://www.goodrx.com/health-topic/heart/otc-drugs-to-avoid-on-blood-thinners