How to reconstitute AOD-9604

What adding water changes, and what it does not

The vial holds a fixed mass of dried AOD-9604. That mass is printed on the label: 2 mg or 5 mg in the sizes commonly sold. Bacteriostatic water does not add or remove peptide. It only decides how much liquid that fixed mass is spread through.

So reconstitution is a single arithmetic step. Mass divided by volume gives concentration, expressed as mg per mL. Every later decision, including what a dose looks like on a syringe barrel, follows from that one number.

The practical consequence is that there is no universally correct amount of water. There is only the amount that makes your intended dose land somewhere you can measure. This page computes those concentrations. It does not tell you which one to pick, because that is a clinical judgment and this site has no medical review behind it.

Reading the concentration table

Three things in the table above are worth pulling out.

First, concentration moves inversely with water. Hold the vial size steady and double the water, and the concentration halves. This is the whole mechanism, and it means you can shift a dose from a hard-to-read sliver of the barrel to a comfortable span without touching the vial contents.

Second, the 5 mg vial produces higher concentrations than the 2 mg vial at every water volume shown. If you are working from listings that mention doses of 0.25 mg, 0.3 mg or 0.5 mg, a high concentration compresses those into a very small volume. A lower concentration spreads the same dose across more of the syringe, which is easier to see and easier to repeat.

Third, the 3 mL rows produce concentrations that do not divide cleanly. Those figures are rounded. Any dose you calculate from a rounded concentration inherits that rounding, so the 1 mL and 2 mL rows are the ones that give clean arithmetic.

Turning a dose in mg into a volume on the syringe

Once the vial is mixed, the conversion is a division. Take the dose in mg and divide it by the concentration in mg/mL. The result is the volume in mL you need to draw.

Insulin syringes are not marked in mL. A U-100 syringe is marked in units, where the full 1 mL barrel is the full 100 unit scale. So the second step is to convert your mL figure onto the unit scale of the syringe you actually hold. Check the barrel before you assume, because syringes with other scales exist and the markings are not interchangeable.

Do both steps in writing before you draw anything. The most common error in peptide dosing is not a mixing mistake, it is reading a unit mark as though it were a milligram or a millilitre. Those are three different quantities and only one of them is printed on your syringe.

Mixing the vial

Let the vial come to room temperature before you touch it. Wipe the rubber stopper. Draw your chosen volume of bacteriostatic water into a syringe, insert the needle through the stopper at an angle, and let the water run down the inside wall of the glass rather than jetting directly onto the powder.

Do not shake. Peptides are fragile and agitation can damage them. Swirl gently, or set the vial down and wait. The powder should go into solution without force. A solution that stays cloudy or shows visible particles after it has had time to dissolve is a reason to stop and reassess, not a reason to push on.

Label the vial with the mass and the water volume you used, or with the resulting concentration. This matters more than it sounds. A reconstituted vial looks identical whatever you put in it, and the label is the only record of the arithmetic you did.

What this page cannot tell you

There is no reliable human pharmacokinetic data available to this site for AOD-9604. That means no half life, no clearance time, no statement about whether repeat administration accumulates, and no basis for a dosing interval. Anything you read elsewhere that assigns AOD-9604 a specific duration is going beyond what can be verified here.

The arithmetic on this page is a volume calculation and nothing more. It says how concentrated a solution is once you mix it. It says nothing about effect, dose selection, safety, or what happens in the body.

AOD-9604 is not approved by any regulator for human use. The dose figures referenced here appear in vendor listings; they are inputs to the arithmetic, not recommendations. Questions about whether to use this compound, at what amount, or on what schedule are medical questions, and this page does not answer them.

What we do not know

We hold no reliable human pharmacokinetic data for AOD-9604, so this site makes no claims about its half life, how long it takes to clear, or how it accumulates. The arithmetic below concerns concentration and volume only.

This page answers arithmetic and handling questions. It does not tell you what dose to take, what to expect, or whether anything is appropriate for you, and there is no medical review behind it.

Common questions

How much bacteriostatic water should I add to a 2 mg AOD-9604 vial?

The table covers 1 mL, 2 mL and 3 mL, giving 2 mg/mL, 1 mg/mL and 0.67 mg/mL respectively. Which one suits you depends on the dose you intend to measure and how readable you want that volume to be on your syringe. This site does not recommend a water volume or a dose.

Does adding more water make the dose weaker?

No. It makes the solution less concentrated, so the same dose in mg occupies a larger volume. The mass of peptide in the vial is unchanged. You are moving the same amount of drug through more liquid, which changes the syringe reading and nothing else.

How often should AOD-9604 be injected?

This site holds no reliable human pharmacokinetic data for AOD-9604, so it makes no claim about half life, clearance or dosing frequency. The arithmetic here concerns concentration and volume only. Scheduling is a clinical question this page cannot answer.

Can I use regular sterile water instead of bacteriostatic water?

They are not the same product. Bacteriostatic water contains a preservative intended to inhibit bacterial growth in a vial that will be entered more than once; plain sterile water does not. The concentration arithmetic is identical either way, since the calculation only depends on volume.

Why do the 3 mL concentrations have repeating decimals?

Because 2 divided by 3 and 5 divided by 3 do not resolve cleanly. The figures shown are rounded to two decimal places. Any dose volume you derive from them carries that rounding, which is why the 1 mL and 2 mL water volumes produce tidier arithmetic.

What does a dose read on a U-100 syringe?

Divide the dose in mg by the concentration in mg/mL to get the volume in mL, then convert that to the unit scale on your barrel. A U-100 syringe marks the full 1 mL as the full 100 unit scale. Confirm the markings on the syringe in your hand before drawing, as other scales exist.