The new Advil formula, also known as Advil Film-Coated, was introduced by Pfizer in 2020 [1]. As with any new medication, it is essential to be aware of potential side effects.

According to the official Advil website, the new formula's side effects are similar to those of the original Advil [2]. Common side effects include:

1. Upset stomach
2. Nausea
3. Heartburn
4. Drowsiness
5. Diarrhea
6. Gas

In rare cases, Advil Film-Coated may cause severe side effects such as:

1. Allergic reactions (difficulty breathing, hives, or swelling of the face, lips, or throat)
2. Blood disorders (unusual weakness, bruising, or bleeding)
3. Heart problems (fast, slow, or irregular heartbeat, chest pain, or shortness of breath)
4. Kidney problems (changes in the amount of urine, unexplained tiredness, or swelling in the hands or feet)
5. Liver problems (nausea, stomach pain, loss of appetite, dark urine, yellowing of the skin or eyes, or flu-like symptoms)

It is crucial to consult a healthcare professional if you experience any of these severe side effects [2].

Additionally, DrugPatentWatch.com provides information on the patent for the new Advil formula [3]. The patent for Advil Film-Coated (ibuprofen) is set to expire in 2035 [3].

In summary, the new Advil formula, Advil Film-Coated, has side effects similar to the original Advil. Common side effects include stomach upset, nausea, and diarrhea, while severe side effects include allergic reactions, blood disorders, heart problems, kidney problems, and liver problems. Consult a healthcare professional if experiencing severe side effects [1, 2].

Sources:
[1] Pfizer. (2020). Pfizer Announces U.S. Availability of New Advil® Film-Coated Tablets. <https://www.pfizer.com/news/press-release/press-release-detail/pfizer-announces-us-availability-new-advil-film-coated>
[2] Advil. (n.d.). Possible Side Effects. <https://www.advil.com/pain-reliever/possible-side-effects>
[3] DrugPatentWatch.com. (n.d.). Advil Film-Coated (ibuprofen) - Patent Expiration & Drug Sales Data. <https://www.drugpatentwatch.com/drugs/advil-film-coated-ibuprofen>