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Endocrine

Tesamorelin

Approved medicineHuman clinical evidence

FDA-approved for one indication (HIV-associated lipodystrophy)

In simple words: A prescription injection that tells your pituitary gland to release more of your own growth hormone.

How it works

It copies growth hormone–releasing hormone (GHRH), raising growth hormone and IGF-1, which helps break down deep belly (visceral) fat.

Targets: GHRH receptor · Class: Growth hormone–releasing hormone (GHRH) analogue

Uses, latest studies & pairings

Typically used for

  • Approved: reducing excess deep belly (visceral) fat in adults with HIV and lipodystrophy (Egrifta).
  • Studied: fatty liver in people with HIV, where it lowered liver fat.
  • Off-label, some clinics prescribe it for visceral fat or to raise growth hormone. That use isn't approved.

Commonly paired with

  • Clinics often pair it with ipamorelin or CJC-1295 (other growth-hormone boosters). That combination hasn't been studied in trials, and stacking raises IGF-1 further.
  • IGF-1 and blood sugar (glucose and HbA1c) checks, because it can raise both.

Latest studies & news

  1. Mar 2025

    FDA approved Egrifta WR, a new formulation that is mixed once a week instead of daily (still a daily injection) and uses less than half the volume.

    Source: Theratechnologies: FDA approval of Egrifta WR (March 2025)

What the research shows

Human clinical evidence

Human
  • Approved in the US (Egrifta) to reduce excess abdominal fat in people with HIV-associated lipodystrophy, based on trials showing reductions in visceral fat.
  • Studied for fatty liver in people with HIV.

Animal and lab results suggest what might happen; they don't prove an effect in people.

Safety & what to watch

  • Raises IGF-1; can worsen blood sugar control, and cause joint pain, swelling and injection-site reactions.
  • Not for use in pregnancy or with active cancer. IGF-1 and glucose should be monitored.

Amounts

Prescription only, as directed on the label by your prescriber.

📦 My peptide supply kit

The supplies I use, in one Amazon list. Only use them for medicines your clinician prescribes. Never share or reuse needles, and put used ones in a sharps container.

See my peptide supply kit list on Amazon ↗

Studies & references

Draft profile pending editorial review. Educational only, not medical advice. Never start, stop or change a medicine without your prescriber.