Advil is a brand name for ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) that is used to relieve pain, reduce fever, and reduce inflammation. According to the Advil website [2], the recommended dosage for adults is one or two tablets every four to six hours, not to exceed six tablets in 24 hours. It is important to follow the recommended dosage and not exceed the maximum daily dose, as doing so can increase the risk of side effects such as stomach bleeding, kidney damage, and liver damage.

It is important to note that the frequency and dosage of Advil may vary depending on the individual's age, weight, and medical condition. Therefore, it is recommended to consult with a healthcare provider before taking Advil or any other medication.

According to Drug Patent Watch [1], the recommended dosage for Advil varies depending on the type of product. For example, Advil Liqui-Gels are recommended for adults and children over 12 years of age, and the recommended dosage is one capsule every four to six hours, not to exceed six capsules in 24 hours. Advil Junior Strength is recommended for children aged 6 to 11 years, and the recommended dosage is one tablet every four to six hours, not to exceed four tablets in 24 hours.

In summary, the recommended frequency for Advil is every four to six hours, not to exceed the maximum daily dose of six tablets in 24 hours for adults. However, it is important to consult with a healthcare provider before taking Advil or any other medication to ensure the proper dosage and frequency for your individual needs.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[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/