Advil is a nonsteroidal anti-inflammatory drug (NSAID) that is commonly used to treat pain and inflammation. However, long-term use of Advil can cause gastrointestinal problems, including ulcers. The healing time for Advil-induced ulcers can vary depending on the severity of the ulcer and the patient's overall health.

According to the Drug Patent Watch [1], Advil's active ingredient, ibuprofen, has a half-life of approximately 2-4 hours. This means that the drug is metabolized and eliminated from the body relatively quickly. However, the damage caused by long-term use of Advil can persist even after the drug has been eliminated from the body.

Healthline [2] states that the healing time for Advil-induced ulcers can range from a few days to several weeks, depending on the severity of the ulcer and the patient's overall health. In some cases, surgery may be necessary to repair the damage caused by the ulcer.

A study published in the National Center for Biotechnology Information [3] found that the healing time for NSAID-induced ulcers was significantly shorter in patients who received proton pump inhibitors (PPIs) in addition to standard ulcer treatment. PPIs are medications that reduce the amount of acid produced in the stomach, which can help to promote healing of the ulcer.

In conclusion, the healing time for Advil-induced ulcers can vary depending on the severity of the ulcer and the patient's overall health. In some cases, surgery may be necessary to repair the damage caused by the ulcer. Patients who are experiencing gastrointestinal problems as a result of long-term Advil use should speak with their healthcare provider to determine the best course of treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.healthline.com/health/ibuprofen-ulcer
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5478398/