Advil is a brand name for ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain and reduce fever [3]. According to the manufacturer's website, Advil tablets are effective for headaches, toothaches, menstrual cramps, muscle aches, and arthritis pain [3]. However, it is important to note that Advil is not effective for treating severe illness such as COVID-19 [2]. The Centers for Disease Control and Prevention (CDC) recommend against using NSAIDs like Advil to treat COVID-19 symptoms, as they may worsen the illness [2]. It is important to follow the instructions on the label and not exceed the recommended dosage of Advil, as excessive use can lead to serious side effects such as stomach bleeding and kidney damage [3]. In conclusion, Advil is an effective over-the-counter pain reliever for mild to moderate pain, but it is not recommended for treating severe illness such as COVID-19. It is important to use Advil as directed and consult a healthcare professional if pain persists or worsens [2][3].

Sources:
[2] Centers for Disease Control and Prevention. (2021, January 5). Treatments for Severe Illness. Retrieved from https://www.cdc.gov/coronavirus/2019-ncov/your-health/treatments-for-severe-illness.html
[3] Advil. (n.d.). Advil Tablets. Retrieved from https://www.advil.com/our-products/advil-pain/advil-tablets/
[4] Drug Patent Watch. (n.d.). Advil. Retrieved from https://www.drugpatentwatch.com/p/tradename/ADVIL