Take up a new form of exercise or suddenly increase the intensity of your exercise.
Are on your feet for several hours each day.
Have other medical conditions such as rheumatoid arthritis or lupus (systemic lupus erythematosus).
Tend to wear high-heeled shoes , and then switch abruptly to flat shoes.
Wear shoes that are worn out with weak arch supports and thin soles.
Have flat feet or an unusually high arch.
Have legs of uneven lengths or an abnormal walk or foot position.
Have tight Achilles tendons , or ‘ heel cords’.
The maximum dose prescribed under a doctor's care is g daily. Otherwise, the over-the-counter (OTC) maximum daily dose is g daily. Dosage depends upon the age, weight, and any current medical conditions of the patient. Several drugs interact with ibuprofen so check with your doctor, pharmacist, or other health care professional with questions in regard to this drug. Doctors don't know if it is safe to take ibuprofen if your are pregnant, therefore it is not recommended if you are pregnant. According to the American Academy of Pediatrics, ibuprofen is safe to take while breastfeeding.