For rivaroxaban or edoxaban taken in the morning, what is the recommended action regarding the morning dose?

• A. Delay morning dose
• B. Take the morning dose on schedule
• C. Skip the morning dose and take the evening dose early
• D. Increase the morning dose

Answer: (A)

Rivaroxaban and edoxaban are given on a strict daily schedule to achieve a predictable level of anticoagulation. For rivaroxaban, the daily dose is intended to be taken with the evening meal to optimize absorption and reach consistent blood levels. If the dose has already been taken in the morning, the best action is to delay that morning dose and take it at the next scheduled time (the evening). This keeps you on the intended dosing pattern without doubling up on a single day, and it preserves the correct exposure the regimen is designed to provide. The same principle of maintaining a consistent daily timing applies to edoxaban as well, so delaying the morning dose to align with the usual dosing time helps ensure uniform exposure and reduces the risk of under- or over-anticoagulation.