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.
An alternate method to evaluate FDB strength is with the paper grip test. To do this test, sit in a chair with your hips, knees, and ankles positioned at 90° angles. Have a friend place a standard business card beneath your second through fifth toes while you try to stop the card from being pulled away by pushing down with the tips of your toes (Fig. 4). When flexor digitorum brevis is strong, your friend will have difficulty pulling the card out from beneath your toes. Conversely, runners with a weak FDB are surprised by how little force is needed to pull the card away. The paper grip test has been proven to reliably identify toe weakness (4).