Advil is a nonsteroidal anti-inflammatory drug (NSAID) that is commonly used to relieve pain and reduce inflammation. However, if you are taking blood thinners, you should be cautious when taking Advil. Blood thinners, also known as anticoagulants, are medications that help prevent blood clots from forming. According to a Harvard Health Publishing article [2], taking Advil along with blood thinners can increase the risk of bleeding. This is because Advil can interfere with the blood-thinning effects of these medications, which can lead to serious health complications.

It is important to note that not all NSAIDs have the same effect on blood thinners. Some NSAIDs, such as aspirin, can actually enhance the blood-thinning effects of anticoagulants. However, other NSAIDs, such as Advil, can interfere with these medications and increase the risk of bleeding. Therefore, it is important to talk to your doctor before taking any NSAIDs if you are taking blood thinners [2].

In addition, GoodRx [3] advises that if you are taking blood thinners, you should avoid taking over-the-counter (OTC) pain relievers such as Advil, Aleve, and Motrin, as they can increase the risk of bleeding. It is recommended to talk to your doctor or pharmacist before taking any OTC medications while on blood thinners.

In conclusion, if you are taking blood thinners, you should be cautious when taking Advil or any other NSAIDs. These medications can interfere with the blood-thinning effects of anticoagulants and increase the risk of bleeding. It is recommended to talk to your doctor before taking any medications, including OTC pain relievers, while on blood thinners [2][3].

Sources:
[2] "Bad mix: Blood thinners and NSAIDs." Harvard Health Publishing. https://www.health.harvard.edu/diseases-and-conditions/bad-mix-blood-thinners-and-nsaids
[3] "OTC Drugs to Avoid on Blood Thinners." GoodRx. https://www.goodrx.com/health-topic/heart/otc-drugs-to-avoid-on-blood-thinners