how often can you take ibuprofen 400mg

You can take ibuprofen 400 mg every 4 to 6 hours as needed for pain relief. Do not take it more frequently than every 4 hours to avoid increased risk of side effects. The maximum over-the-counter dose you should take in a 24-hour period is 1200 mg (equivalent to three 400 mg doses). If prescribed by a doctor, higher doses up to 3200 mg per day may be allowed under medical supervision. Always try to use the lowest effective dose for the shortest time necessary to relieve pain.