Advil is a brand name for the drug ibuprofen, which belongs to a class of medications called nonsteroidal anti-inflammatory drugs (NSAIDs) [1]. It is used to relieve pain, fever, and inflammation. However, NSAIDs like Advil can irritate the lining of the stomach, leading to acid reflux and other digestive issues [2].

According to myhealth.alberta.ca, the recommended dose of Advil for adults is 200-400mg every 4-6 hours as needed, with a maximum daily dose of 1200mg [3]. However, it is important to note that individuals with acid reflux or other digestive issues should use Advil with caution, and only under the guidance of a healthcare provider.

The recommended dosage of Advil for acid reflux may vary depending on the severity of the condition and other factors such as age, weight, and overall health. Patients should always consult their healthcare provider before taking Advil or any other medication, especially if they have a history of acid reflux or other digestive issues.

In conclusion, the recommended dosage of Advil for acid reflux is not specified, but patients with acid reflux should use Advil with caution and only under the guidance of a healthcare provider. It is important to follow the recommended dosage and not exceed the maximum daily dose of 1200mg.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.healthline.com/health/pain-relief/ibuprofen-advil-side-effects
[3] https://myhealth.alberta.ca/Health/aftercareinformation/pages/conditions.aspx?hwid=uh3195