Advil is a brand name for ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, reduce fever, and decrease inflammation. Like any medication, Advil can cause side effects. According to the Mayo Clinic[3], the most common side effects of ibuprofen include upset stomach, heartburn, nausea, vomiting, headache, dizziness, and drowsiness. More serious side effects are rare but can occur, such as allergic reactions, difficulty breathing, swelling of the face, lips, tongue, or throat, and signs of liver problems like dark urine, yellowing of the skin or eyes, and stomach pain.
GoodRx[2] warns that Advil can increase the risk of heart attack or stroke, especially if taken for a long time or in high doses. It can also cause stomach bleeding, which can be fatal. The risk of these side effects increases if you have a history of heart disease, high blood pressure, or stomach ulcers. It is important to talk to your doctor before taking Advil if you have any of these conditions.
Drug Patent Watch[1] notes that Advil is contraindicated in patients with a history of allergic reactions to aspirin or other NSAIDs. It can also interact with other medications, including blood thinners, corticosteroids, and selective serotonin reuptake inhibitors (SSRIs).
In conclusion, Advil can cause side effects, ranging from mild to severe. The most common side effects are upset stomach, heartburn, nausea, vomiting, headache, dizziness, and drowsiness. More serious side effects are rare but can occur, such as allergic reactions, difficulty breathing, swelling, and signs of liver problems. Advil can also increase the risk of heart attack or stroke, especially if taken for a long time or in high doses, and cause stomach bleeding, which can be fatal. It is important to talk to your doctor before taking Advil if you have any medical conditions or take other medications.
Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.goodrx.com/advil/advil-side-effects
[3] https://www.mayoclinic.org/drugs-supplements/ibuprofen-oral-route/side-effects/drg-20070602?p=1