Survodutide Reconstitution: 5mg + 2mL Chart

How to Reconstitute Survodutide

You have a vial of survodutide (BI 456906) — a dual glucagon/GLP-1 receptor agonist — in lyophilized powder form. Before you can use it, you need to reconstitute it with bacteriostatic water.

Survodutide's once-weekly dosing and multi-step titration make precise reconstitution especially important. This guide covers mixing, measuring across the full dose range, and proper storage.

What You Need

• Survodutide lyophilized vial (typically 5mg or 10mg)
• Bacteriostatic water (BAC water) — not sterile water, not saline
• Insulin syringes — 1mL (100 unit), 29-31 gauge
• Alcohol swabs — for cleaning vial tops
• A clean, flat workspace

Why bacteriostatic water? It contains 0.9% benzyl alcohol that prevents bacteria from growing in your solution. Since survodutide is dosed once weekly and a single vial can span multiple weeks (especially during titration), BAC water's 28-day shelf life is essential.

Step-by-Step Reconstitution

Step 1: Clean Everything

Wipe the tops of both vials (survodutide and BAC water) with alcohol swabs. Let them air dry for 10 seconds.

Step 2: Draw Your Bacteriostatic Water

Using a fresh insulin syringe, draw your desired amount of BAC water. For most people, 1mL into a 5mg vial is the sweet spot — it keeps all titration doses measurable on an insulin syringe without exceeding 100 units.

Step 3: Add Water to the Peptide Vial

Insert the needle at an angle, aiming at the glass wall — not directly at the powder. Let the water trickle down the side of the vial gently.

Step 4: Let It Dissolve

Gently swirl the vial with a slow rotating motion. Do not shake. The powder should dissolve within 1-2 minutes into a clear, colorless solution.

Step 5: Store Correctly

Refrigerate immediately at 36-46°F (2-8°C). Stable for up to 28 days with bacteriostatic water.

Dilution Charts

5mg Vial

Recommended: 1mL BAC water for 5mg vials. This keeps even the maintenance dose (4.8mg = 96 units) within syringe range. At 2mL, higher titration doses exceed 100 units.

10mg Vial

10mg vials are ideal for the maintenance phase — a single vial at 4.8mg/week provides about 2 weeks of dosing.

The Math

Concentration = Peptide Amount (mcg) ÷ Water Added (mL)

Units to inject = Desired Dose (mcg) ÷ Concentration (mcg/mL) × 100

Example: 5,000mcg vial + 1mL water = 5,000mcg/mL. For a 1.2mg (1,200mcg) dose: 1,200 ÷ 5,000 × 100 = 24 units.

Don't want to do math? Use our Reconstitution Calculator.

How Many Doses Per Vial?

This depends on your titration phase:

5mg vial:

• At 0.6mg/week (early titration) = ~8 weeks
• At 1.8mg/week (mid titration) = ~2.8 weeks
• At 4.8mg/week (maintenance) = ~1 week

10mg vial:

• At 1.2mg/week = ~8 weeks
• At 2.7mg/week = ~3.7 weeks
• At 4.8mg/week = ~2 weeks

Important: Reconstituted vials should be used within 28 days. During early titration at low doses, a 10mg vial would last far longer than 28 days — use 5mg vials during the titration phase.

Storage Quick Reference

Common Mistakes

Using Too Much Water

Adding 2mL to a 5mg vial means the 4.8mg maintenance dose requires 192 units — nearly two full syringes. Use 1mL for 5mg vials to keep all doses manageable.

Not Planning for Titration

Survodutide's 7-step titration means your dose changes every ~4 weeks. Plan vial purchases accordingly — you'll use less product during early titration and more during maintenance. A 5mg vial covers the first few titration steps; switch to 10mg vials at higher doses.

Shaking the Vial

Peptides are proteins. Shaking creates foam and can denature the molecule. Always swirl gently.

Leaving It at Room Temperature

Reconstituted survodutide degrades at room temperature. Pull the vial out, draw your dose, put it back immediately.

Reusing Needles

Each puncture dulls the needle and increases contamination risk. Fresh syringe every time.

Related Reading

• Survodutide Dosing Guide — titration schedules and protocols
• Survodutide Benefits — research-backed effects ranked by evidence
• Survodutide Bloodwork Guide — what labs to track
• Semaglutide Reconstitution Guide — mixing guide for the leading GLP-1
• Retatrutide Reconstitution Guide — mixing guide for the triple agonist
• BPC-157 Reconstitution Guide — the standard reconstitution reference
• Calculate Your Survodutide Cycle Cost — estimate vials needed and total cost

References

1. Blüher M, et al. (2024). Glucagon and GLP-1 receptor dual agonist survodutide for obesity — a phase 2 trial. Lancet Diabetes Endocrinol. PMID:38330987
2. Saxena AR, et al. (2023). Phase I studies of the safety, tolerability, pharmacokinetics and pharmacodynamics of BI 456906. Diabetes Obes Metab. PMID:36527386
3. USP General Chapter 797: Pharmaceutical Compounding — Sterile Preparations. Storage and beyond-use dating guidelines.

---

This guide is for educational and informational purposes only. It is not medical advice. Survodutide is an investigational compound not approved by the FDA. Reconstituting and self-administering peptides carries inherent risks. Always use proper sterile technique. Consult a qualified healthcare provider before starting any peptide protocol.