- Any prescription medication taken within 14 days (or 5 elimination half-lives, whichever is longer) of Study Day -2, or have taken any over-the-counter medications, including topical medications, herbal or dietary supplements/remedies within 7 days of Study Day 2, or planned concomitant medication while in the study (except for acetaminophen up to 2 g/day and hormonal birth control).