Semaglutide is titrated slowly on purpose. Nearly every bad experience with this medication — relentless nausea, vomiting, quitting in month two — traces back to escalating too fast. Below is the standard semaglutide dosage chart, what each step is for, and how to adjust it in the real world.
Standard semaglutide dosage chart for weight loss
| Weeks | Weekly dose | Purpose |
|---|
| 1–4 | 0.25 mg | Tolerance building — not a weight-loss dose |
| 5–8 | 0.5 mg | First therapeutic dose; appetite suppression begins |
| 9–12 | 1.0 mg | Steady loss for many patients |
| 13–16 | 1.7 mg | Escalation if loss has stalled |
| 17+ | 2.4 mg | Maximum maintenance dose |
Each step is four weeks minimum. There is no benefit to moving faster — plasma levels take four to five weeks to reach steady state at any given dose, so escalating at week two means you never actually saw what the previous dose could do.
Semaglutide units on a syringe
Compounded semaglutide is dosed in milligrams but drawn in units on an insulin syringe, which is where most dosing errors happen. With a common 2.5 mg/mL concentration:
| Dose | Volume | Units (U-100 syringe) |
|---|
| 0.25 mg | 0.10 mL | 10 units |
| 0.5 mg | 0.20 mL | 20 units |
| 1.0 mg | 0.40 mL | 40 units |
| 1.7 mg | 0.68 mL | 68 units |
| 2.4 mg | 0.96 mL | 96 units |
Always confirm the concentration on your own vial. Concentrations vary between pharmacies, and a chart built for a different concentration is how people accidentally take four times their intended dose.
When to hold instead of escalating
Stay at your current dose another four weeks if any of these are true:
- You are still having nausea, reflux or constipation more than two days a week.
- You are losing more than 2 lb per week — faster is not better, and it drives muscle loss and Ozempic face.
- You are struggling to eat 100 g of protein a day.
- You are still losing steadily. There is no reason to increase a dose that is working.
Many patients do very well long term at 1.0 mg and never need 2.4 mg. The goal is the lowest effective dose, not the highest tolerated one.
Managing side effects during titration
Nausea peaks in the 48–72 hours after each injection and after each dose increase. What actually helps: smaller meals, protein first, no fried or high-fat food on injection day, and staying ahead on fluids. Dehydration amplifies every GI side effect, and appetite suppression means you are drinking less without noticing. A hydration drip during the first week of a dose increase is one of the most common requests we get from GLP-1 patients.
Frequently asked questions
What is the starting dose of semaglutide?
0.25 mg once weekly for the first four weeks. This is a tolerance-building dose, not a weight-loss dose — most people lose little or nothing on it, and that is expected.
What happens if I miss a dose of semaglutide?
If it has been fewer than five days, take it as soon as you remember and keep your normal weekly schedule. If more than five days have passed, skip it and take your next scheduled dose. Never double up. If you have missed two or more consecutive weeks, restart at a lower dose — tolerance fades quickly.
How long can you stay on 0.5 mg of semaglutide?
Indefinitely, if it is working. There is no requirement to reach 2.4 mg. Providers escalate when weight loss stalls for four or more weeks, not on a fixed calendar.
Can I split my semaglutide dose into two injections a week?
Some providers split doses to smooth out side effects, since the half-life is about seven days. Do not do it on your own — it changes your dosing math and your risk of an error. Ask your prescriber first.
How fast should I lose weight on semaglutide?
1–2 lb per week is the target. Faster loss increases muscle loss, gallstone risk and facial volume loss without improving your long-term outcome.
Start with a provider, not a chart
We prescribe, dose and monitor semaglutide in Boston and ship it nationwide. See semaglutide treatment in Boston or our shipped-to-you program for pricing.
