Tesamorelin

Also known as · Egrifta WR · Egrifta SV · TH9507 · GHRH analog

01 / Dosing schedule

Cited dosing

The FDA-approved dose is 1.28 mg (0.16 mL of the reconstituted 11.6 mg-per-vial solution) subcutaneously once daily. One reconstituted vial provides seven daily doses.

Egrifta WR — daily subcutaneous

PhaseDose & frequency
Standard dose1.28 mg subQ once daily
Vial11.6 mg lyophilized powder per single-patient-use vial
Reconstitute with1.3 mL of the provided bacteriostatic water
Draw per dose0.16 mL from the reconstituted vial
StabilityDiscard unused solution 7 days after mixing

Source · FDA label — Egrifta WR (2025) ↗

Source indication · HIV-associated lipodystrophy (Egrifta WR label).

Injection frequency
Once daily.
Injection sites
Abdomen. Rotate injection sites.

02 / Reconstitution

Reconstitution reference

Egrifta WR is 11.6 mg per vial, reconstituted with 1.3 mL of bacteriostatic water using the diluent provided. The label states the 1.28 mg dose corresponds to a 0.16 mL draw. One reconstituted vial provides seven daily doses; discard the vial 7 days after mixing.

Vial11.6 mg
BAC water1.3 mL
Concentration~8.9 mg/mL
Example dose1.28 mg
On a U‑100 syringe~14 units on U‑100 (0.16 mL)
Open the reconstitution calculator →

03 / Overview

Protocol overview

Tesamorelin is a synthetic analog of growth-hormone-releasing hormone (GHRH). It stimulates the pituitary to release endogenous growth hormone, indirectly raising IGF-1.

The only FDA-approved indication is reduction of excess abdominal fat in HIV-infected adults with lipodystrophy. This is the population all pivotal-trial data comes from.

The very short plasma half-life (~26–38 minutes) means action is transient. Daily dosing is required to maintain pulsatile GH release.

The label recommends periodic assessment of continued need, given the lack of long-term cardiovascular or diabetic-outcome data.

04 / References

References

  1. FDA prescribing information — Egrifta WR (tesamorelin) 2025 ↗
  2. Falutz J et al. Effects of Tesamorelin on Visceral Fat and Liver Fat in HIV-Infected Patients With Abdominal Fat Accumulation. NEJM 2007 ↗