# Tesamorelin (Egrifta-type) — Prescription Reference

> Pharmaceutical-grade GHRH(1–44) analogue — reference entry, prescription only

All products are sold strictly for laboratory research use only. Not for human or veterinary use.

- Web page: https://peptidemedixeu.com/en/products/tesamorelin-rx/
- Brand: Peptide Medix EU
- Category: [Prescription Hormones](https://peptidemedixeu.com/en/collections/rx-hormones/)
- CAS number: 218949-48-5
- from €382 (EUR)

## Sizes and prices (EUR)

| Size | Price | SKU |
| --- | --- | --- |
| 2 mg vial · 30-pack | €382 | TESAMORELIN-RX-2-MG-VIAL-30 |

_Catalog prices at build time; the web page and checkout are authoritative._

## Specifications

- **CAS number:** 218949-48-5
- **Molecular formula:** C221H366N72O67S
- **Molecular weight:** 5,135.86 g/mol
- **Peptide class:** Growth hormone-releasing hormone (GHRH) analogue; growth hormone secretagogue
- **Regulatory status:** Prescription-only medicine (Rx); supplied solely against valid prescription or institutional authorisation
- **Generic name:** Tesamorelin acetate
- **Approved brand family:** Egrifta, Egrifta SV and Egrifta WR formulations
- **Structure:** Full 44-residue human GHRH sequence with a trans-3-hexenoyl group on the N-terminal tyrosine
- **Molecular target:** GHRH receptor on anterior pituitary somatotrophs
- **Downstream marker:** Endogenous pulsatile growth hormone release, with a consequent rise in IGF-1
- **Approved indication:** Reduction of excess abdominal fat in adults with HIV infection and lipodystrophy
- **Reference size listed:** 2 mg vial × 30
- **Storage:** Per the approved labelling for the specific formulation — some presentations require 2–8 °C refrigeration, later reformulations are stable at controlled room temperature; reconstituted solution used per labelling

## Description

Reference entry for a prescription-only medicine. What is described here is the authorised, pharmaceutical-grade tesamorelin sold as the Egrifta range — not research-grade material. We include it in our institutional catalogue so that clinics and pharmacies can look up the molecule, its single authorised use, how it is presented and how to store it. It is released only on a valid prescription or with an institution's documented authorisation, and you will find no guidance here on dosing, administration or where to source it.

Chemically, tesamorelin is a man-made form of growth hormone-releasing hormone (GHRH): all 44 amino acids of the human sequence plus a trans-3-hexenoyl group on the first tyrosine. This acyl cap covers the exact site at which DPP-4 splits natural GHRH, which is why the molecule holds up better. In its acetate-salt form the peptide weighs 5,135.86 g/mol and has the formula C221H366N72O67S.

## Frequently asked questions

### Can tesamorelin be obtained without a prescription?

No. The pharmaceutical product on this page requires a prescription. The entry covers identity, pharmacology, the authorised indication and storage for institutional reference only; supply happens solely against a valid prescription or an institution's documented approval, and we offer no other way to obtain it.

### How is it different from growth hormone itself?

It acts one step earlier. As a GHRH receptor agonist on pituitary somatotrophs, it makes the patient's own pituitary release growth hormone in pulses that stay under IGF-1 and somatostatin feedback. Somatropin, by contrast, is growth hormone given directly, bypassing that control loop.

### What is the role of the trans-3-hexenoyl group?

It caps the N-terminal tyrosine of the 44-residue GHRH sequence exactly where dipeptidyl peptidase-4 would cut and inactivate native GHRH. The bulky hydrophobic group blocks that cleavage without touching the receptor-binding part of the peptide — the basis of its greater stability.

### Why don't all presentations have the same storage instructions?

The product has been reformulated over time. Older vial versions needed to be kept refrigerated (2–8 °C); newer ones were engineered to stay stable at controlled room temperature and use other reconstitution volumes and vial strengths. The authorised product information for the specific pack you hold always takes precedence.

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All products offered on this website are intended solely for in-vitro laboratory research and development by qualified professionals. They are not drugs, foods, cosmetics or dietary supplements, and are not intended to diagnose, treat, cure or prevent any disease. Products must not be introduced into humans or animals in any manner. By purchasing, you confirm that you are a qualified researcher and accept full responsibility for handling and storage in accordance with applicable laws.

Peptide Medix EU · https://peptidemedixeu.com/en/products/tesamorelin-rx/