You can take ibuprofen 800 mg every 6 hours, which means up to 4 times a day. The prescription-strength dosage of 800 mg ibuprofen should not be exceeded per dose, and the total maximum daily dose is 3200 mg. Be sure not to take more than 800 mg in a single dose. Ideally, take the lowest effective dose for the shortest duration necessary, and do not exceed 3200 mg in 24 hours under medical supervision. In summary:

• Dose: 800 mg
• Frequency: Every 6 hours (up to 4 times/day)
• Maximum daily dose: 3200 mg
• Do not exceed 800 mg per single dose

This is prescription-strength ibuprofen and should be taken under the supervision of a healthcare provider to avoid side effects like stomach ulcers, bleeding, or kidney issues.