27. Takes any concomitant medication, either prescribed or over the counter. This includes any prescription or non-prescription medication, including vitamins or herbal medications, within 7 days, or 5 half-lives (if known), whichever is longer, prior to dosing and within 24 hours after dosing, excluding hormonal contraceptives. The use of acetaminophen, naproxen, and ibuprofen is permitted except for within 24 hours prior to dosing.