Ibuprofen is a non-steroidal anti-inflammatory medicine, which is used to relieve pain in conditions such as osteoarthritis, rheumatoid arthritis, menstrual cramps (dysmenorrhea), muscle aches, headache, back pain, dental pain, etc. It is also used to treat mild-to-moderate fever. Do not take this medicine if you have any bleeding disorder or asthma or a known allergy to this medicine. This medicine is not recommended for use in children less than 6 months of age. Buy Ibuprofen Online. Know ... Learn the 25 potential side effects of ibuprofen here, as well as how it affects COVID-19. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Find patient medical information for Ibuprofen (Advil, Caldolor, Motrin) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings