Week 6: Adjusting to 5mg
The second injection at 5mg is where the rebound starts to fade and the new baseline emerges. Appetite suppression is stronger than it has ever been, and your daily food rhythm is rewriting itself.
The first 5mg dose taught your body the new level. The second one consolidates it. Tirzepatide accumulates with each weekly injection until steady state — typically by the fourth dose at a given tier — so what week 6 feels like is meaningfully different from what week 5 felt like, even though the number on the pen is the same.
For most people, the side-effect echo from week 5 is gone or nearly gone by injection day in week 6. What remains is the new baseline: smaller meals without effort, longer gaps between feeling hungry, and a noticeable change in what foods sound appealing at all.
Appetite Suppression
By the second 5mg dose, appetite suppression is at its strongest yet. Many users describe needing to remind themselves to eat.
Cumulative loss through week 6 averages around 3 percent of starting body weight, with wide individual variation.
The Week 6 Timeline
The Week 6 Timeline
Day 36 (Second 5mg)
Smoother Injection Day
The second injection at 5mg typically lands without the rebound that hit in week 5. The injection-day pattern feels closer to the late starter phase.
Days 38-40
The New Normal
Appetite suppression deepens. Some users report a clearer change in food preferences — richer or sweeter foods losing some of their pull.
Day 42
Two Weeks at 5mg
Half a tier complete. Note what is working and what is not — these patterns inform the conversation about whether to climb to 7.5mg at week 9.
Navigating Symptoms
The most common late-titration issue is dehydration, not nausea. Tirzepatide blunts thirst signals as well as hunger ones — schedule water like you schedule meals.
A pattern worth watching: muscle loss. At higher appetite suppression, total protein intake often drops by accident. Aim for protein at every meal you do eat, and consider resistance work twice a week if your routine allows. The medication does the appetite work; you protect the body composition.
What Users Report
“By week 6 my second 5mg shot was a non-event. The first one was a rough couple of days, this one was nothing. Just steady, quiet hunger and easy meals.”
— Lila S.
“I lost about 8 pounds by the end of week 6. The biggest difference was not the scale, it was that I stopped thinking about food between meals at all.”
— Andre K.
Looking ahead
Two more weeks at 5mg before the next titration decision. Use them. The standard schedule moves to 7.5mg at week 9, but most clinicians will hold longer if 5mg is producing steady results — there is no requirement to climb to the maximum dose.