Advil is a nonsteroidal anti-inflammatory drug (NSAID) that is commonly used to treat pain and inflammation. However, it can also cause digestive damage, particularly if taken in high doses or for extended periods. The duration of Advil-induced digestive damage can vary depending on the severity of the damage and the individual's overall health.

According to Drug Patent Watch [1], Advil can cause gastrointestinal damage, including ulcers, bleeding, and perforation of the stomach or intestines. These side effects can occur even with short-term use, but the risk increases with higher doses and longer duration of use. The risk is also higher in individuals with a history of gastrointestinal problems, such as ulcers or bleeding.

The Hospital for Special Surgery [2] recommends several guidelines to reduce the risk of digestive damage from NSAIDs, including Advil. These guidelines include taking the lowest effective dose for the shortest duration possible, avoiding other NSAIDs and corticosteroids, taking the medication with food or milk, and avoiding alcohol and smoking.

The side effects of Advil, including digestive damage, can vary in duration depending on the severity of the damage and the individual's overall health. According to GoodRx [3], common side effects of Advil can include upset stomach, nausea, and heartburn, which may last for a few hours or a few days. However, more severe side effects, such as ulcers or bleeding, may take longer to heal and may require medical treatment.

In conclusion, Advil can cause digestive damage, including ulcers, bleeding, and perforation of the stomach or intestines. The duration of these side effects can vary depending on the severity of the damage and the individual's overall health. It is important to follow guidelines to reduce the risk of digestive damage from NSAIDs, including taking the lowest effective dose for the shortest duration possible, taking the medication with food or milk, and avoiding other NSAIDs and corticosteroids. If you experience severe side effects from Advil, you should seek medical attention.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.hss.edu/conditions_guidelines-reduce-side-effects-nsaids.asp
[3] https://www.goodrx.com/advil/advil-side-effects