Advil is a brand name for ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain and reduce fever. According to the Advil website [2], the recommended dosage for adults is one or two tablets every four to six hours, while the maximum dosage is six tablets in 24 hours. However, it is important to note that the dosage may vary depending on the individual's age, weight, and medical condition. It is always best to consult with a healthcare professional before taking any medication, especially if you have any underlying medical conditions or are taking other medications.

Taking Advil too frequently or in excessive amounts can lead to adverse effects, such as stomach ulcers, bleeding, kidney damage, and heart problems [3]. According to a USA Today article [3], taking Advil regularly for more than ten days can increase the risk of side effects. Therefore, it is recommended to use Advil only as needed and not exceed the maximum daily dosage.

It is also important to note that Advil should not be taken with certain medications, such as blood thinners and other NSAIDs, as it can increase the risk of bleeding and other adverse effects [2]. Pregnant women and individuals with a history of stomach ulcers, liver or kidney disease, or heart problems should also consult with a healthcare professional before taking Advil [2].

In summary, the recommended dosage for Advil is one or two tablets every four to six hours, with a maximum daily dosage of six tablets in 24 hours. However, it is important to consult with a healthcare professional before taking any medication, and to use Advil only as needed and not exceed the maximum daily dosage. Taking Advil too frequently or in excessive amounts can lead to adverse effects, and it should not be taken with certain medications or by individuals with certain medical conditions.

Sources:
[2] https://www.advil.com/faqs-en/advil-pain/
[3] https://www.usatoday.com/story/news/2023/03/11/how-often-can-you-take-advil/11230106002/