How long does Ibuprofen stay in someones system?

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The half-life of ibuprofen is approximately 2 hours. This means that after 2 hours, only half of the active dose is still present in your system. After 6 hours (3 half-lives) there's 1/8th left of the original dose in your system, which is not enough to perceive any effects. After one day (12 half-lives) there's only 1/4096th left, or practically none. Thank you!

Answered - 11 days ago at 6:26pm on May 19 2012

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