kairoby Opportune Labs

Retatrutide

Retatrutide is a single investigational molecule designed to activate three hormone receptors. It is different from tirzepatide and semaglutide, despite informal online names that group them together.

Investigational / researchHuman randomized trials
Kairo editorial · Sources reviewed September 9, 20264 sources
On this page
  1. Overview
  2. What the evidence shows
  3. Safety
  4. Common questions
  5. Questions for your clinician
  6. Sources

This entry or formulation may be investigational and may not correspond to an FDA-approved product; safety and efficacy may not have been established. Kairo lists it for identification and record-keeping only.

Overview

Product & regulatory status

Investigational; FDA identifies retatrutide as an unapproved drug.

Three receptor targets

The molecule activates GIP, GLP-1, and glucagon receptors; receptor count alone cannot establish superiority over another treatment. [1]

What the evidence shows

Obesity research

A phase 2 trial enrolled 338 adults and followed weight change for 48 weeks. Retatrutide groups lost more weight than placebo; the highest studied group averaged 24.2% reduction. This is a group result, not a forecast for an individual. [1]

Trial product versus marketed vials

FDA states that retatrutide is not an ingredient of an approved drug. A research-vial label does not establish that its contents match a clinical trial product. [2]

What remains unknown

The cited trial does not establish safety of combinations with other incretin drugs or the identity of products sold outside research.

Safety

Tolerability and pulse

Gastrointestinal effects were common and dose-related in the phase 2 trial. Heart rate increased during treatment before declining later in follow-up. [1]

Studied route

The cited obesity trial used a subcutaneous research formulation. It does not validate an oral product with the same name. [1]

Understanding product quality

Compounded drugs are not FDA-approved finished products. Poor preparation can cause contamination or incorrect strength. A catalog entry or a research paper is not a quality assessment of your product. [3]

When to seek urgent help

Severe allergic symptoms such as trouble breathing, throat or tongue swelling, or fainting need immediate help. Call 911 or your local emergency number. This is general emergency information, not a complete list of risks for this compound. [4]

A starting point for discussion

This is not a complete list of adverse effects or interactions. Your health history, other medicines, and the exact formulation matter. Missing safety data is not evidence of safety.

Common questions

Does triple agonist mean three medicines mixed together?

No. In this study it describes one molecule acting at GIP, GLP-1, and glucagon receptors.

Questions for your clinician

Does the evidence match my condition and this exact product? What risks or interactions matter for me? How would we assess whether it is helping?

Sources

  1. Triple-Hormone-Receptor Agonist Retatrutide for Obesity — A Phase 2 Trial2023 · Primary research · PubMed
  2. FDA’s Concerns with Unapproved GLP-1 Drugs Used for Weight LossFDA · Retatrutide and cagrilintide status
  3. Compounding and the FDA: Questions and AnswersFDA · product quality and regulation
  4. AnaphylaxisMedlinePlus · recognizing an emergency

Educational information, not a recommendation to use a compound. Kairo does not give dosing advice. Review decisions with a licensed healthcare professional.