Ibuprofen, the active ingredient in Advil, is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain and reduce fever. According to the Mayo Clinic [2], the maximum recommended daily dose of ibuprofen for adults is 3200 mg per day, which is typically divided into several doses throughout the day. However, the recommended dose may vary depending on the individual's medical condition and other medications they are taking, so it is important to consult with a healthcare provider before taking any medication.

It is also important to note that taking more than the recommended dose of ibuprofen can increase the risk of side effects such as stomach bleeding, kidney damage, and heart attack. GoodRx [3] advises that taking more than 1200 mg of ibuprofen per day can increase the risk of side effects, and taking more than 2400 mg per day is considered an overdose.

In addition, the maximum recommended daily dose of Advil may vary depending on the specific formulation. According to Drug Patent Watch [1], the maximum daily dose of Advil Liqui-Gels is 1200 mg per day, while the maximum daily dose of Advil Film-Coated Tablets is 1800 mg per day.

In summary, the maximum recommended daily dose of ibuprofen for adults is 3200 mg per day, but this may vary depending on the individual's medical condition and other medications they are taking. It is important to consult with a healthcare provider before taking any medication and to avoid taking more than the recommended dose to reduce the risk of side effects.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.mayoclinic.org/drugs-supplements/ibuprofen-oral-route/proper-use/drg-20070602
[3] https://www.goodrx.com/ibuprofen/how-much-is-too-much-advil-ibuprofen