True, but 1600mg/day is not that large of a dose. Standard dosing is 200-400mg every 4 hours, 600mg every 6 hours, or 800mg every 8 hours. Dosing like this in the short term (over a few days) is usually OK for normal, healthy, no-kidney-disease, non-geriatric patients that aren't taking other meds that may have interactions. Ask your doc to be certain, if you have any other medical conditions, or just aren't sure.

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