Semaglutide Dosage: Wegovy, Ozempic & Rybelsus
Last updated May 19, 2026 · Reviewed by Grey Peptides Editorial Board · ✓ Based on FDA labeling
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Semaglutide is an FDA-approved prescription medicine with three labeled products: Wegovy (obesity, injectable + oral), Ozempic (type 2 diabetes, injectable), and Rybelsus (type 2 diabetes, oral tablet). Each has its own labeled titration.
The defining feature of dosing is a slow, stepped escalation — Wegovy reaches its 2.4 mg weekly target over 16 weeks — done specifically to reduce nausea and other GI effects. Injections are once weekly, any day, with or without food.
This page summarizes the labeled schedules for education. Actual dosing is individualized and adjusted by your prescriber based on tolerability and response — it is not something to self-manage.
Wegovy (obesity) — injectable titration
Wegovy uses a four-week step-up to the maintenance dose to let the gut adapt:
| Weeks | Dose | Frequency |
|---|---|---|
| 1–4 | 0.25 mg | Once weekly |
| 5–8 | 0.5 mg | Once weekly |
| 9–12 | 1.0 mg | Once weekly |
| 13–16 | 1.7 mg | Once weekly |
| 17+ | 2.4 mg | Once weekly (maintenance) |
→ Plan this schedule in the GLP-1 Titration Planner — pick a target dose and start date for a dated, week-by-week plan and an escalation chart.
The 0.25 mg starting dose is a non-therapeutic "ramp" dose — it's about tolerance, not weight loss. If a person can't tolerate 2.4 mg, the label permits staying at 1.7 mg as maintenance. An oral Wegovy formulation for obesity is also available following its 2025 approval.
Ozempic (type 2 diabetes) — injectable
| Phase | Dose | Notes |
|---|---|---|
| Start (4 weeks) | 0.25 mg weekly | Non-therapeutic ramp dose |
| Then | 0.5 mg weekly | First therapeutic dose |
| If needed (≥4 wks later) | 1.0 mg weekly | For further glucose control |
| Maximum | 2.0 mg weekly | If further control needed |
Rybelsus (type 2 diabetes) — oral tablet
The oral form is dosed differently because absorption is far lower: 3 mg daily for 30 days, then 7 mg daily, with the option to increase to 14 mg daily after at least another 30 days. Rybelsus must be taken on an empty stomach with a small sip of plain water (about 4 oz), at least 30 minutes before any other food, drink, or medication — a strict requirement that does not apply to the injectable forms.
Why the dose climbs slowly
Every semaglutide schedule starts low and steps up for one main reason: gastrointestinal tolerability. Nausea, diarrhea, vomiting, and constipation are most intense when the dose first increases, and a gradual ramp blunts that. Rushing the titration tends to trade a few weeks of speed for a lot more nausea — which is why the labeled steps exist and why prescribers sometimes hold a person at a lower step longer, or back down a level, before advancing.
Practical dosing notes
- Timing: the injectables are once weekly on the same day each week, any time of day, with or without food. The day can be changed if needed as long as doses are at least 48 hours apart.
- Injection sites: abdomen, thigh, or upper arm, rotating sites.
- Missed dose (Wegovy): if the next dose is more than 2 days (48 hours) away, take it as soon as you remember; if it's less than 2 days away, skip it and resume the schedule.
- Stopping: weight regain is common after discontinuation — these are studied as chronic, ongoing treatments rather than short courses.
- Compounded vs branded: branded semaglutide comes in prefilled pens. Compounded versions may arrive as vials requiring measurement — see the Reconstitution Calculator. Note the shifting rules on compounded GLP-1s in our Regulatory Tracker.
Side effects & safety, briefly
The common effects are gastrointestinal and tend to ease after the titration period. Semaglutide carries class warnings (including a boxed warning regarding thyroid C-cell tumors seen in rodents, and cautions around pancreatitis and gallbladder events); your prescriber screens for these. For interactions with other medications, see our GLP-1 drug interactions guide. This page is about labeled dosing, not a substitute for the full prescribing information or your clinician's guidance.
Frequently asked questions
What's the highest semaglutide dose?
It depends on the product: 2.4 mg weekly for Wegovy (obesity), 2.0 mg weekly for Ozempic (diabetes), and 14 mg daily for Rybelsus (oral diabetes).
Can I speed up the titration to lose weight faster?
That's not how it's designed — escalating faster mainly increases nausea, not results. Dose changes are a prescriber's call based on how you tolerate each step.
Is Ozempic dosing the same as Wegovy?
No. They're both semaglutide but labeled for different uses and different maximum doses (Ozempic tops out at 2.0 mg for diabetes; Wegovy at 2.4 mg for obesity).
Sources
- FDA prescribing information — Wegovy (semaglutide injection), obesity dosing and titration.
- FDA prescribing information — Ozempic (semaglutide injection), type 2 diabetes dosing.
- FDA prescribing information — Rybelsus (oral semaglutide), type 2 diabetes dosing and administration.
Educational only — not medical advice. Semaglutide is a prescription medicine; dosing must be set and adjusted by a licensed clinician. Refer to the current FDA prescribing information.