Overview: Ibuprofen is used to reduce fever, pain, and swelling. It works by blocking certain substances in the body that cause pain, inflammation, and fever. Common side effects include stomach. Ibuprofen is a pain reliever and fever reducer used to temporarily relieve minor aches and pains. Ibuprofen is also used to temporarily reduce fever. Learn about side effects, dosages, drug interactions, and more. Ibuprofen is used to reduce fever and treat pain or inflammation caused by many conditions such as headache, toothache, back pain, arthritis, menstrual cramps, or minor injury. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can help you feel better when you have a headache, muscle aches or other minor aches and pains. It also treats conditions that cause inflammation, like rheumatoid arthritis. Ibuprofen is used primarily to treat fever (including post-vaccination fever), mild to moderate pain (including pain relief after surgery), painful menstruation, osteoarthritis, dental pain, headaches, and pain from kidney stones. Prescription ibuprofen is used to relieve pain, tenderness, swelling, and stiffness caused by osteoarthritis (arthritis caused by a breakdown of the lining of the joints) and rheumatoid arthritis (arthritis caused by swelling of the lining of the joints). Detailed Ibuprofen dosage information for adults and children. Includes dosages for Pain, Osteoarthritis, Rheumatoid Arthritis and more; plus renal, liver and dialysis adjustments. NHS information about ibuprofen for adults, including what it's used for, who can use it, how to use it and side effects. View ibuprofen information, including dose, uses, side-effects, renal impairment, pregnancy, breast feeding, contra-indications and important safety information. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) used to treat mild to moderate pain, and helps to relieve symptoms of arthritis (osteoarthritis, rheumatoid arthritis, or juvenile arthritis), such as inflammation, swelling, stiffness, and joint pain.