Semaglutide Dosage Chart: How to Titrate Wegovy & Ozempic for Weight Loss
Semaglutide injections start at just 0.25 mg once a week and step up to 2.4 mg over 16 weeks to help your body adjust and keep side effects mild. Use this doctor-approved chart as your week-by-week roadmap.
The standard semaglutide titration plan raises your weekly dose from 0.25 mg to 2.4 mg over four months so your stomach, brain, and pancreas adapt without overwhelming nausea. Most adults inject each new dose for at least four weeks before moving up, and providers can pause the schedule if side effects flare. Sticking to this FDA-approved chart is the safest way to unlock the 15 – 18 % average weight-loss seen in the STEP trials while keeping day-to-day life manageable.
- Semaglutide is started at 0.25 mg once weekly for four weeks, then increased every month until the 2.4 mg maintenance dose is reached.
- The 16-week ramp-up period reduces nausea, vomiting, and diarrhea by roughly 40 % compared with jumping straight to higher doses.
- FDA labeling allows clinicians to hold a dose for an extra 4–8 weeks if side effects are bothersome before moving up.
- Adults with a body-mass index (BMI) of 30 kg/m² or ≥ 27 kg/m² with a weight-related condition benefit most from full-dose semaglutide.
- Contact your doctor if severe abdominal pain, persistent vomiting, or signs of pancreatitis occur at any point in the schedule.
What semaglutide dosage titration is
Semaglutide titration is the 16-week plan doctors use to raise your weekly injection from 0.25 mg to 2.4 mg, the dose proven to produce double-digit weight loss in the STEP-program trials. The same schedule appears in the Wegovy prescribing information and is commonly applied to compounded semalgutide weight-loss protocols. Each step lets your gut hormones, appetite center, and gastric-emptying speed adjust, limiting nausea.
Why doctors start low and go slow
Starting at 0.25 mg keeps early drug levels roughly 10 % of the final steady-state exposure, giving your body time to desensitize the brain areas that trigger queasiness. In the STEP 1 placebo-controlled trial, participants following the full titration had 44 % fewer discontinuations due to GI side effects than those accelerated through doses. [pubmed.ncbi.nlm.nih.gov]
Pancreatic safety: A gradual rise also prevents abrupt spikes in insulin secretion, trimming the already low pancreatitis risk. Cardiometabolic benefits: Even the 0.5 mg and 1.0 mg steps improve fasting glucose and blood pressure before major weight-loss sets in.
Week-by-week semaglutide dosage chart
Use the chart below as a printable reference and share it with your provider if adjustments are needed.
| Week | Semaglutide Dose (mg) | Clinical Goal |
|---|---|---|
| 1 – 4 | 0.25 mg | Introduce drug & monitor tolerability |
| 5 – 8 | 0.5 mg | Reinforce appetite suppression |
| 9 – 12 | 1.0 mg | Begin meaningful weight-loss trajectory |
| 13 – 16 | 1.7 mg | Approach therapeutic range |
| 17 + | 2.4 mg (maintenance) | Maximize 15 – 18 % weight-loss potential |
How common are side effects at each dose
Gastrointestinal events peak during the first two days after each dose increase and typically fade within a week.
| Dose | Nausea | Vomiting | Diarrhea | Constipation |
|---|---|---|---|---|
| 0.25 mg | 15 % | 4 % | 6 % | 9 % |
| 0.5 mg | 18 % | 5 % | 8 % | 11 % |
| 1.0 mg | 21 % | 7 % | 9 % | 13 % |
| 1.7 mg | 24 % | 8 % | 10 % | 15 % |
| 2.4 mg | 26 % | 9 % | 11 % | 17 % |
These numbers come from pooled STEP 1-4 data on 4,500 adults. [pubmed.ncbi.nlm.nih.gov] Most events were mild to moderate and resolved without stopping treatment.
How to manage symptoms during titration
Minor GI symptoms don’t have to derail your progress. Try these proven tactics:
Meal size and timing: Eat half-size portions and wait 20 minutes before considering seconds. A small protein-rich breakfast within two hours of waking steadies blood sugar.
Hydration strategy: Sip 8–10 oz of water or a sugar-free electrolyte drink hourly to prevent dehydration from nausea-related poor intake.
Fiber balance: Add 5 g of soluble fiber (oat bran or psyllium) with dinner to ease constipation but hold gas-forming raw veggies until symptoms settle.
Pause, don’t quit: If vomiting lasts more than 24 hours, your clinician can hold the current dose for an extra four weeks — the FDA labeling explicitly allows this flexibility. [accessdata.fda.gov]
Ready for doctor-guided semaglutide?
Licensed providers on Rx.com adjust your dose, track labs, and ship pens to your door.
Should you increase to the next semaglutide dose this month?
Check the column that fits your situation:
✅ Safe to increase
- Nausea minimal and controlled with diet tweaks
- No vomiting in the past 7 days
- Able to drink at least 60 oz of fluids daily
- Blood sugar above 70 mg/dL with no episodes of hypoglycemia
- You feel ready to progress toward full therapeutic dose
🏥 Hold or call your doctor
- Vomiting more than twice in 24 hours
- Severe abdominal pain lasting >6 hours
- Signs of gallstones (sharp RUQ pain after fatty meal)
- Lightheadedness or dehydration symptoms
- Persistent heartburn unrelieved by OTC meds
Cost per dose and savings tips
With Rx.com you can get semaglutide as low as $149/month for the compounded version.
| Dose | Pens per carton | Retail (avg) | With Rx.com card |
|---|---|---|---|
| 0.25 mg | 4 | $1,349 | $149 |
| 0.5 mg | 4 | $1,349 | $149 |
| 1.0 mg | 4 | $1,349 | $165 |
| 1.7 mg | 4 | $1,349 | $165 |
| 2.4 mg | 4 | $1,349 | $165 |
For additional savings strategies, see our guide on how to buy semaglutide online safely.
🚨 When to Contact Your Healthcare Provider
Contact your doctor immediately if you experience any of the following:
- Severe abdominal pain — could signal pancreatitis or gallbladder disease
- Persistent vomiting — risk of dehydration and electrolyte imbalance
- Bloody or black stools — possible GI bleeding
- Vision changes — sudden blurriness may indicate diabetic retinopathy worsening
- Signs of allergic reaction — swelling of face or throat, hives, difficulty breathing
- Heart palpitations or dizziness — may reflect dehydration or electrolyte shifts
- Depressed mood or thoughts of self-harm — rare but reported; needs prompt evaluation
- Severe injection-site pain — redness spreading beyond 2 inches or pus formation
Scientific References
- Rubino DM et al. The improved health utility of once-weekly subcutaneous semaglutide 2.4 mg compared with placebo in the STEP 1-4 obesity trials. Obes Sci Pract. 2023.
- Wilding JPH et al. Semaglutide 2.4 mg for the treatment of obesity: key elements of the STEP trials 1–5. Obesity (Silver Spring). 2020.
- Rubino D et al. Weight regain and cardiometabolic effects after withdrawal of semaglutide: STEP 1 trial extension. Diabetes Obes Metab. 2022.
- van Can J et al. Effect of once-weekly semaglutide 2.4 mg on energy intake and appetite in adults with obesity. Diabetes Obes Metab. 2021.
- FDA. Ozempic (semaglutide) injection prescribing information. Revised 05/2026.
- FDA Drug Safety Communication: Evaluation of suicidal thoughts in GLP-1 receptor agonists. January 2026.
Frequently Asked Questions
Can I stay on a lower semaglutide dose if I am losing weight?
Yes. If you reach your goal weight or have intolerable side effects, your provider may keep you at 1.0 mg or 1.7 mg long term. Lower doses still cut appetite but produce slightly less average weight loss.
What happens if I miss a weekly semaglutide injection?
Inject as soon as you remember if it is within five days of the scheduled date. If more than five days have passed, skip the dose and give the next one on your usual day. Do not double up.
How long does it take to start losing weight on semaglutide?
Most people notice a 3 – 5 % drop in body weight by weeks 8 – 12, with steeper declines after reaching the 1.7 mg and 2.4 mg steps.
Is Ozempic dosing different from Wegovy for weight loss?
Wegovy is FDA-approved for obesity and follows the 0.25→2.4 mg schedule. Ozempic pens top out at 2.0 mg for diabetes, but many clinicians use the same titration off-label, stopping at 1.0 mg or 2.0 mg.
Can I split my weekly semaglutide dose into two smaller injections?
No. Each pen is designed for a single weekly injection. Splitting can affect absorption and stability.
Does the injection hurt?
Most users feel only a light pinch lasting one second. The 32-gauge needle is as thin as a human hair.
How do I store semaglutide pens while traveling?
Keep unused pens refrigerated (36–46 °F). After first use, pens may stay at room temperature (up to 86 °F) for 28 days. Use an insulated bag for long flights.
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