Common Side Effects of Advil
Advil (ibuprofen) relieves pain, fever, and inflammation but can cause side effects, mostly mild and short-term. Stomach upset tops the list—affecting up to 10-20% of users—including nausea, heartburn, bloating, gas, or diarrhea. These often ease if you take it with food.[1][2]
Headaches, dizziness, or mild rash occur less often. Long-term or high-dose use raises risks like stomach ulcers or bleeding, especially in older adults or those with ulcer history.[3]
Serious Symptoms Requiring Medical Attention
Seek help for black/tarry stools, vomiting blood (like coffee grounds), severe stomach pain, chest pain, shortness of breath, swelling in legs, unusual weakness, or yellowing skin/eyes (liver issues). Heart attack or stroke signs—slurred speech, one-sided weakness—demand emergency care, as NSAIDs like ibuprofen slightly increase cardiovascular risk with prolonged use.[1][4]
Allergic reactions hit fast: hives, face/lip swelling, wheezing, or trouble breathing. Stop use immediately.[2]
Who Faces Higher Risks?
People over 65, those with heart disease, high blood pressure, asthma, kidney issues, or on blood thinners like warfarin see amplified risks. Avoid if pregnant (especially third trimester) or breastfeeding without doctor approval. Daily alcohol ups stomach bleed odds.[3][5]
Kids under 6 months shouldn't take it; dosing matters for ages 6 months+.[1]
What If Symptoms Persist or Worsen?
Most fade within days, but don't exceed 1,200 mg daily without advice (OTC max). Switch to acetaminophen if stomach-sensitive, but check interactions. Always read the label—Advil Liqui-Gels or PM variants differ slightly.[2][4]
Sources
[1]: FDA Advil Label
[2]: Mayo Clinic - Ibuprofen Side Effects
[3]: Drugs.com - Advil Side Effects
[4]: WebMD - Ibuprofen Risks
[5]: MedlinePlus - Ibuprofen