Week 8: Last Week at 5mg
Week 8 is the final full week of the 5mg phase. It is a natural checkpoint for reviewing how your body is responding and deciding — with your clinician — whether to move up to 7.5mg or hold steady.
The Zepbound and Mounjaro labels both describe a four-week dose escalation interval as the standard pace. After four weeks at 5mg, clinicians typically discuss moving to 7.5mg if appetite control is fading or weight loss has stalled. Many users, however, stay at 5mg longer — especially when side effects took time to settle or when the current dose is still producing steady losses.
By week 8, you have roughly two months of data on yourself. Look at the trend, not the single weigh-in. A common pattern at the end of the 5mg phase is total weight loss in the 5–7% range from baseline, though the spread across real users is wide.
Appetite Suppression
Suppression at 5mg generally remains in the 75–85% range; a slight upward drift in hunger can signal readiness for titration.
Weekly losses commonly stay in this range, with some users seeing a small dip before the dose increase.
Week 8 Timeline
The Week 8 Timeline
Day 50 (Injection 8)
Final 5mg Dose
This is your last scheduled 5mg injection if you and your clinician plan to titrate. Note exactly how you feel — it is your baseline for comparing the 7.5mg experience.
Days 52-54
Hunger Check
Watch for creeping food noise, evening snacking, or larger natural portion sizes. These are real-world signals that 5mg is no longer giving full coverage.
Day 56
Titration Decision
Confirm the next dose with your clinician. If side effects at 5mg were rough, holding for another four weeks is a reasonable, label-supported option.
Navigating Symptoms
Reflux can become more noticeable as 5mg reaches steady state. Smaller meals, avoiding late-night eating, and staying upright for 30 minutes after meals usually help.
If you decide to titrate, plan the logistics now: refill the new dose pen, choose an injection day that allows for a quieter day after, and stock easy-to-tolerate foods (broth, yogurt, crackers) in case GI side effects flare in week 9.
What Users Report
“End of 5mg, down about 14 pounds. My doctor and I decided to move up because the last few days before each injection felt hungrier than the first few.”
— Elena S.
“I am holding at 5mg for another month. Losses are steady and I do not want to push side effects when this dose is clearly working.”
— James W.
Looking ahead
Week 9 is your first injection at 7.5mg — a meaningful step up that often brings a brief return of titration symptoms. Read Week 9 on Tirzepatide to know what to expect, or revisit the resources hub.