Tesamorelin
This one actually has a label.
Tesamorelin is unusual in this category because it is an approved medicine with published prescribing information. It still arrives as a powder you reconstitute, so the arithmetic still matters.
- Cost
- Free
- Syringe
- U-100
- Signup
- None
- Data
- Nothing stored
The science
An approved drug that still needs reconstituting
01
Tesamorelin is a growth hormone releasing factor analogue approved under the brand name Egrifta for reduction of excess visceral abdominal fat in adults with HIV associated lipodystrophy. Because it is approved, there is prescribing information that specifies the dose, the diluent and the reconstitution procedure, which is exactly the thing the research peptides on this site lack.
02
That makes the arithmetic here a check rather than a guess. Your prescribing information and pharmacy instructions are the authority on both the dose and the volume of diluent to use. This calculator exists to convert between the milligram figure and the mark on the barrel, and to let you confirm that the number you drew matches the number you meant.
03
Doses are in whole or fractional milligrams rather than micrograms, which changes the shape of the problem. A 2 mg vial reconstituted with 2 ml is 1 mg per ml, so a 1.4 mg dose is 140 units, which overflows a 100 unit barrel. Less diluent, or a different syringe, is required, and the tables below make that visible immediately.
04
The practical point is that milligram scale doses can exceed a U-100 barrel in a way microgram doses never do. When the calculator tells you a dose does not fit, that is a real constraint about the syringe rather than a rounding artefact, and the answer is the volume specified in your instructions rather than an improvised one.
Lookup
1 mg and 2 mg vials at each diluent volume
Tesamorelin doses are in milligrams rather than micrograms, so they occupy a large share of the vial and land high on the barrel. The table shows where.
1 mg Tesamorelin vial
Units on a U-100 syringe
| Dose | 1 ml | 1.5 ml | 2 ml | 2.5 ml | 3 ml |
|---|---|---|---|---|---|
| 0.5 mg | 50 | 75 | 100 | · | · |
| 1 mg | 100 | · | · | · | · |
2 mg Tesamorelin vial
Units on a U-100 syringe
| Dose | 1 ml | 1.5 ml | 2 ml | 2.5 ml | 3 ml |
|---|---|---|---|---|---|
| 0.5 mg | 25 | 37.5 | 50 | 62.5 | 75 |
| 1 mg | 50 | 75 | 100 | · | · |
| 1.4 mg | 70 | · | · | · | · |
| 2 mg | 100 | · | · | · | · |
A dot marks a combination that falls under two units or overflows a 100-unit barrel. Both are hard to measure accurately, so they are worth avoiding rather than eyeballing.
Regulatory status
Approved, which changes what this page should say
Tesamorelin is approved by the FDA under the brand name Egrifta for a specific indication in adults with HIV associated lipodystrophy. That means a prescribing document exists, and it is the authority on dose, diluent, reconstitution and storage.
Because that document exists, this page deliberately does not restate dose figures from it. Summaries drift, labels get updated, and a stale number on a website is worse than no number. The prescribing information supplied with your product is the source to use.
Tesamorelin is also sold outside that approved route as a research chemical, and material obtained that way carries no assurance of identity, purity or quantity, which makes any arithmetic performed on its label figure unreliable regardless of how carefully the division is done. The calculator assumes the number you enter is true, and that assumption is only as good as the vial.
FAQ
Common questions
How is tesamorelin reconstituted?
It is supplied as a lyophilised powder that is reconstituted with a specified diluent before injection, and the prescribing information for the product you have specifies which diluent and what volume. Follow that rather than a general rule, because the concentration it produces is what the stated dose assumes. This calculator converts the resulting concentration into syringe units.
What is the approved dose of tesamorelin?
Tesamorelin is approved as Egrifta for reduction of excess visceral abdominal fat in adults with HIV associated lipodystrophy, and the prescribing information states the dose and frequency. Because an approved label exists, that document rather than any website is the correct source. This page does not restate a dose figure, it converts whichever figure applies to you into a mark on a barrel.
How many units is 1.4 mg of tesamorelin?
That depends on the concentration after reconstitution. At 1 mg per ml it is 140 units, which does not fit a 100 unit syringe. At 2 mg per ml it is 70 units, which does. This is why the diluent volume in your instructions matters, and why a units figure quoted without a concentration cannot be reused.
Is tesamorelin the same as sermorelin?
No. Both act on the growth hormone releasing pathway and both are supplied as powders needing reconstitution, but they are different molecules with different regulatory histories. Tesamorelin is currently approved under a brand name with published prescribing information. Sermorelin was approved previously and was discontinued in the United States, which is a meaningful difference in what documentation exists.
Why does my dose need more than 100 units?
Because the solution is too dilute for a milligram scale dose. One hundred units is one millilitre, so any dose requiring more than a millilitre at your concentration will not fit in a single U-100 syringe. Reconstituting with less diluent raises the concentration and brings the dose back onto the barrel, but the volume should follow your product instructions rather than convenience.
VialClock
This page calculates. Your notes app forgets.
Every tool here is stateless by design. What it cannot do is remember that your vial was mixed eleven days ago, or that a step-up is due this week.
Browse all calculatorsThis tool performs arithmetic on figures you enter, or presents a manufacturer-published schedule. It does not know your protocol, will never suggest a dose, and is not medical advice. Dosing decisions belong with a qualified prescriber.