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Dosing Guide

Semaglutide Dosing Guide

The standard weekly titration schedule, explained step by step — plus a dosage chart converting each dose to mL and syringe units across common vial strengths.

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10,000+ Members Trust iSTRYVE

This guide is for general education, not medical advice. Semaglutide is prescription-only. Your actual starting dose, titration pace, and maintenance dose are determined by a licensed provider based on your health history — not by this page. iSTRYVE members get an individualized schedule from their care team.

Semaglutide titration schedule

Semaglutide is injected once weekly, on the same day each week, at any time of day — with or without food. Nearly every provider starts patients low and increases gradually, since this is what keeps nausea and other GI side effects manageable as your body adjusts.

TimelineWeekly doseWhat to expect
Weeks 1–40.25 mgStarting dose — lets your body adjust with minimal side effects.
Weeks 5–80.5 mgFirst increase, once your provider confirms you're tolerating 0.25 mg.
Weeks 9–121 mgMost patients begin noticing steadier appetite control around this dose.
Weeks 13–161.7 mgA larger step up — some providers hold here longer if side effects appear.
Week 17+2.4 mgTypical maintenance dose. Some patients stay at a lower effective dose long-term.

This is the standard schedule most providers reference. Your iSTRYVE provider may slow it down, hold a dose longer, or adjust it based on how you respond.

Dosage chart: mg to mL and syringe units

Compounding pharmacies mix semaglutide at different concentrations, so the same dose can mean a very different draw volume depending on your specific vial. Use this chart alongside the label on your vial — never guess the concentration.

Vial strength0.25 mg0.5 mg1 mg1.7 mg2.4 mg
2 mg/mL0.125 mL (12.5 units)0.25 mL (25 units)0.5 mL (50 units)0.85 mL (85 units)1.2 mL (120 units)*
2.5 mg/mL0.1 mL (10 units)0.2 mL (20 units)0.4 mL (40 units)0.68 mL (68 units)0.96 mL (96 units)
5 mg/mL0.05 mL (5 units)0.1 mL (10 units)0.2 mL (20 units)0.34 mL (34 units)0.48 mL (48 units)
10 mg/mL0.025 mL (2.5 units)0.05 mL (5 units)0.1 mL (10 units)0.17 mL (17 units)0.24 mL (24 units)

*A standard U-100 insulin syringe only measures up to 100 units (1 mL). At lower concentrations, higher doses like 2.4 mg may require a larger syringe or a more concentrated vial — your pharmacy accounts for this when filling your prescription.

How to inject semaglutide

1

Wash your hands and let the vial come to room temperature if it's been refrigerated.

2

Draw the dose your provider prescribed, double-checking the mL/unit marking against your vial's concentration.

3

Pinch a fold of skin on your abdomen, thigh, or upper arm and inject subcutaneously at a 90° angle.

4

Rotate injection sites each week to reduce irritation, and dispose of the needle in a sharps container.

Managing common side effects

Nausea, mild constipation, and fatigue are most common in the first few weeks after a dose increase and typically ease within days. Eating smaller, lower-fat meals, staying hydrated, and avoiding lying down right after eating all help. Tell your provider if side effects are severe or don't improve — your titration pace can always be adjusted.

Frequently asked questions

Most providers start patients at 0.25 mg once weekly for four weeks, then increase roughly every four weeks — to 0.5 mg, 1 mg, 1.7 mg, and a typical maintenance dose of 2.4 mg. Your exact schedule depends on how you tolerate each step and your treatment goals.

If it's been less than 5 days since your missed dose, take it as soon as you remember, then resume your normal weekly schedule. If more than 5 days have passed, skip the missed dose and take your next one on the regular day — don't double up.

Compounding pharmacies mix semaglutide at different concentrations (commonly 2–10 mg/mL). A higher concentration means a smaller injection volume for the same dose. Always check the concentration printed on your specific vial label — it determines how many mL or units you draw.

It depends entirely on your vial's concentration. At 2.5 mg/mL, 0.25 mg is 10 units on a standard U-100 insulin syringe. At 5 mg/mL, the same 0.25 mg dose is only 5 units. Use the chart above and double-check against the label your pharmacy provides.

Yes. Many people reach their goals — or their side-effect tolerance limit — at 1 mg or 1.7 mg and stay there under their provider's guidance. Dose increases are about finding what works for you, not reaching the highest number.

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