Dose escalation guide

GLP-1 medications like Wegovy and Mounjaro start at low doses and gradually increase over weeks. This approach minimises side effects while your body adjusts. Here are the complete schedules and what to expect at each stage.

Why dose escalation?

Starting at the full therapeutic dose would cause severe nausea and vomiting in most patients. Gradual escalation allows your GI system to adapt, making the medication tolerable. Most side effects occur during dose increases and improve within 1–2 weeks at each level.

Wegovy dose schedule (16 weeks)

WeeksDoseWhat to expectEstimated cost
1–40.25mgMild appetite changes. Side effects usually minimal.$200–280/mo
5–80.5mgAppetite suppression more noticeable. Nausea may appear.$250–320/mo
9–121.0mgWeight loss accelerating. GI effects may peak.$300–380/mo
13–161.7mgStrong effects. Often the hardest phase — it improves.$350–420/mo
17+2.4mgMaintenance dose. Most side effects settled.$400–$460/mo

Mounjaro dose schedule (20 weeks)

WeeksDoseWhat to expect
1–42.5mgStarting dose. Usually well tolerated.
5–85mgAppetite suppression noticeable. Some nausea possible.
9–127.5mgSignificant weight loss may begin. GI effects may peak.
13–1610mgStrong effects. Most have adjusted by now.
17–2012.5mgApproaching maximum dose.
21+15mgMaximum dose. Not everyone needs to reach this level.

What if side effects are too bad?

If you experience severe nausea or vomiting at a dose increase, your doctor can:

  • Extend the current dose: Stay at the current level for an extra 2–4 weeks before increasing
  • Prescribe anti-nausea medication: Ondansetron (Zofran) can help manage severe nausea
  • Adjust the schedule: Some patients do better with smaller dose jumps (where the pen allows)
  • Accept a lower maintenance dose: Not everyone needs the maximum dose — significant weight loss can occur at lower doses

Cost during escalation

One benefit of escalation: your medication costs less in the first few months because you're using lower (cheaper) doses. This reduces the first-year total cost compared to annual maintenance pricing.

First month guide → · Calculate your costs →

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