What is the eloralintide peptide?
Eloralintide dosing questions start with what the compound is. Eloralintide is an investigational peptide developed by Eli Lilly that acts on the amylin receptor. Amylin is a hormone the pancreas releases alongside insulin, and several companies are studying longer-acting amylin-based compounds; cagrilintide from Novo Nordisk is the best-known example. Eloralintide has been evaluated in clinical trials, and the results reported so far come from those studies, not from research-labeled vials.
When you see “eloralintide peptide” for sale online, it refers to freeze-dried powder, most often in a 10 mg vial, labeled for research. That powder has to be dissolved in a measured volume of liquid before any amount can be measured with a syringe, and that step is the only part this page covers. It does not describe what eloralintide does in the body or who it might be for.
How much BAC water for an eloralintide vial?
The water volume is a choice that controls concentration. Add less and each unit carries more peptide; add more and each unit carries less. The chart below shows mcg per unit for the common 10 mg vial alongside a 5 mg vial for comparison, across a range of BAC water volumes.
| BAC water | 5 mg vial | 10 mg vial |
|---|---|---|
| 1 mL | 50 mcg/unit 5 mg/mL | 100 mcg/unit 10 mg/mL |
| 2 mL | 25 mcg/unit 2.5 mg/mL | 50 mcg/unit 5 mg/mL |
| 3 mL | 16.67 mcg/unit 1.667 mg/mL | 33.33 mcg/unit 3.333 mg/mL |
| 4 mL | 12.5 mcg/unit 1.25 mg/mL | 25 mcg/unit 2.5 mg/mL |
Each cell shows mcg per unit on a U-100 syringe (100 units = 1 mL) and the resulting concentration.
Each cell uses the same formula: vial mg × 1,000 ÷ (water mL × 100), which simplifies to vial mg × 10 ÷ water mL. Whatever volume you use, write it on the vial, because every later calculation depends on it. The guide to reconstituting peptides explains the process in general terms.
Worked example for a 10 mg eloralintide vial
For example, if the amount you already have is 1 mg and a 10 mg vial is mixed with 2 mL of BAC water:
The math: 10 mg ÷ 2 mL = 5 mg/mL (5,000 mcg/mL), which is 50 mcg per unit. 1 mg ÷ 5,000 mcg/mL = 0.2 mL = 20 units on a U-100 syringe.
Behind that sentence are three steps. Divide the vial amount by the water volume to get mg per mL. Divide the amount you have by that concentration to get mL. Multiply mL by 100 for U-100 units, since 100 units equal 1 mL on any U-100 syringe regardless of its capacity. If your figure is in micrograms, remember that 1 mg is 1,000 mcg; entering the same amount as mcg gives the identical result as long as the unit is selected correctly.
Changing only the water volume changes every result. For example, if the amount you already have is 1 mg and the same vial is mixed with 4 mL instead:
The math: 10 mg ÷ 4 mL = 2.5 mg/mL (2,500 mcg/mL), which is 25 mcg per unit. 1 mg ÷ 2,500 mcg/mL = 0.4 mL = 40 units on a U-100 syringe.
Eloralintide dosing: what this calculator does and does not do
Searches for eloralintide dosing or an eloralintide protocol usually come from people trying to translate a number into syringe marks. This page handles only that translation. You supply the vial size, the water volume and an amount you already have; the calculator returns a concentration, a volume and units. It does not supply the amount, a schedule, an escalation plan or any other part of a protocol, and it cannot judge whether a number is appropriate.
Published trial results describe the investigational drug under clinical supervision, and they do not transfer to a research-labeled vial of unknown composition. If a result looks wrong, such as a tiny fraction of a unit or more than a full syringe, the usual cause is mg entered as mcg or the reverse. The U-100 syringe units to mL chart is a quick way to sanity-check any volume.
Eloralintide reconstitution notes from supplier labeling
Research suppliers selling eloralintide generally list bacteriostatic water as the diluent. Some suppliers specify letting the vial reach room temperature, adding the water slowly against the glass, and swirling rather than shaking to avoid foaming; many labels call for refrigeration after reconstitution. These are labeling statements, not directions from this site, and the specific product’s label and a qualified professional come first.
Because eloralintide is a newer compound, supplier documentation varies widely. A chart assumes the vial holds exactly the mg printed on it; the math cannot verify content, purity or sterility. Once punctured, a multi-dose BAC water vial should be dated and discarded within 28 days unless the manufacturer states a different date. For background on the diluent, see bacteriostatic water vs sterile water.
Is eloralintide FDA-approved?
Eloralintide is an investigational compound from Eli Lilly and, at the time of writing, is not FDA-approved for any use. Research-labeled vials sold online are not the product being studied in Lilly’s trials, and correct arithmetic says nothing about what they contain or whether they are lawful to use. Other compound-labeled calculators are listed in the peptide library.
Eloralintide FAQ
How much BAC water for a 10 mg eloralintide vial?
No single volume is required. The water only sets the concentration, and the chart shows mcg per unit for several volumes. The product labeling decides the diluent and volume.
Does this page give an eloralintide protocol?
No. It converts an amount you already have into mL and U-100 syringe units. It does not provide a dose, schedule or escalation plan.
Is eloralintide the same as cagrilintide?
No. Both are investigational amylin-based compounds, but eloralintide is from Eli Lilly and cagrilintide is from Novo Nordisk. They are different molecules.
Is eloralintide FDA-approved?
No. At the time of writing it is investigational. Research-labeled vials sold online are not the product used in clinical trials.
Why does adding more water increase the units?
More water spreads the same amount of peptide through more liquid, so the concentration drops and the same amount takes up more volume, which means more units on the syringe.