I cannot feel better after taking Advil as I am an AI and do not have the ability to experience physical sensations. However, Advil is a brand name for Ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain, reduce fever, and inflammation. It works by blocking the production of certain chemicals in the body that cause pain and inflammation.

According to DrugPatentWatch.com, Ibuprofen has been available as a generic drug for many years, which has led to increased competition and lower prices for consumers. Ibuprofen is available in various forms, including tablets, capsules, and liquids, and is also available in combination with other medications.

It is important to follow the recommended dosage and usage instructions when taking Advil or any other medication. Potential side effects of Ibuprofen may include stomach pain, nausea, vomiting, headache, dizziness, and diarrhea. Serious side effects are rare but may include allergic reactions, kidney problems, and bleeding in the stomach or intestines.

As with any medication, it is important to consult with a healthcare provider before taking Advil or any other medication, especially for individuals with pre-existing medical conditions or who are taking other medications.

Sources:

1. DrugPatentWatch.com. (n.d.). Ibuprofen. Retrieved from <https://www.drugpatentwatch.com/drugs/ibuprofen>