Brief Answer: Maximum 2capsules of 500mg/5mg every 6hours! Detailed Answer: hi and thank you so much for this query. I am so sorry to hear about these migraines that your son has. He can take a maximum of 2capsules every 6hours(maximum 4times in a 24hours period). I will not advise that he adds advil to it but should the headaches fail to resolve after 4doses(24hours), seek medical consultation for evaluation and further management. He should also try to keep away from bright light. I will encourage him to rest in a low lit room an get some quite rest as well. I hope this addresses your query fully. I wish him a speedy resolution of symptoms. Feel free to ask for more information and clarification if need be. Thanks. Dr. ivo, MD.

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