You can take Advil (ibuprofen) 200 mg to 400 mg every 4 to 6 hours as needed for pain relief. The general guideline is:

• Take 1 tablet (200 mg) every 4-6 hours.
• If pain persists, you may take 2 tablets (400 mg) every 4-6 hours.
• Do not exceed 6 tablets (1200 mg) in 24 hours if using over-the-counter ibuprofen.
• For prescription ibuprofen, the maximum dose can be up to 3200 mg per day under doctor supervision.
• Always take the lowest effective dose for the shortest time needed.
• Take ibuprofen with food or milk to minimize stomach irritation.
• Avoid taking ibuprofen more frequently than every 4 hours to reduce the risk of side effects.

For specific Advil products like Advil 12Hour, follow the product-specific instructions, such as not taking more than 1 tablet at a time and a maximum of 2 tablets in 24 hours. If pain lasts more than 10 days or worsens, or you have other health conditions, consult a doctor before continuing use.