Trifluxen 15 mg & 6.14 mg Tablets (Trifluridine & Tipiracil)

Here’s how the dosing and monitoring schedule typically works for Trifluridine & Tipiracil:

The basic schedule — a 28-day cycle

Each treatment cycle is 28 days long, but you’re not taking the medication every day within it:

• Days 1–5: Take the medication twice daily
• Days 6–7: Rest (no medication)
• Days 8–12: Take the medication twice daily again
• Days 13–28: Rest (no medication)

Then the cycle repeats. So out of each 4-week cycle, you’re actively taking the drug for 10 days total, spread across two 5-day blocks with a 2-day break in between, followed by a longer 16-day break before the next cycle starts.

How each dose is taken

• Twice daily — typically morning and evening
• Within 1 hour after completing a meal — this affects absorption, so timing relative to food matters
• The dose itself is calculated based on your body surface area (using your height and weight), which is why your specific dose may differ from someone else’s even at the same tablet strength

Blood count monitoring — the core safety requirement

Given the boxed warning for bone marrow suppression, blood counts are checked at defined points:

• Before starting treatment — baseline complete blood count (CBC)
• Before each new cycle begins — to confirm counts have recovered enough to start the next cycle safely
• Mid-cycle (around day 15) — an additional check partway through, since blood counts often dip lowest about 1–2 weeks after the dosing days

If neutrophil counts, platelet counts, or hemoglobin are too low at any of these checkpoints, your oncologist may delay the start of the next cycle, reduce your dose, or in some cases skip a dose until counts recover.

Other monitoring

• Kidney function — checked periodically, since this affects how the drug is processed and may influence dosing
• Liver function tests — less central than with regorafenib, but still part of routine bloodwork
• Symptom check-ins — nausea, diarrhea, appetite, and fatigue are typically discussed at each visit, since these affect quality of life and may prompt supportive medications (anti-nausea drugs, for example)

What dose adjustments look like in practice

It’s common for the dose to be reduced over the course of treatment if side effects (especially low blood counts) occur — this is a normal part of managing the medication, not a sign that it’s “failing.” Your oncologist will balance maintaining enough dose intensity to be effective against keeping side effects manageable.

A practical note on timing

Because the schedule has specific “on” days that don’t align neatly with calendar weeks, many patients find it helpful to use a pill calendar or phone reminders marking exactly which days are dosing days versus rest days — especially since missing the meal-timing window (within 1 hour after eating) is easy to do without a visual reminder.

This is a sensitive topic where individual factors — your baseline blood counts, kidney function, and how you tolerate the first cycle — will shape how closely your actual schedule follows this template, so your oncology team’s specific instructions for your case should always take priority over general guidance like this.