
Investigational Compound · Educational Information
Retatrutidean investigational triple agonist.
Retatrutide is currently in clinical trials and is not FDA-approved for any indication. This page is educational only. Any clinical decision is made by an independently licensed clinician on a case-by-case basis after a comprehensive medical evaluation.
Investigational compound — important notice
Retatrutide is an investigational compound that is not approved by the U.S. Food and Drug Administration for any indication, including weight loss. It remains in active clinical trials. Any prescribing decision is made solely by an independently licensed clinician on a case-by-case basis after a comprehensive medical evaluation, and only where the clinician determines a compounded preparation is medically appropriate and legally permissible. This page is educational only and is not a solicitation, offer, or guarantee of treatment. Information about candidacy, eligibility, and clinical criteria is discussed during consultation.
About the compound
Three receptors, studied in clinical trials.
Retatrutide is being studied as a triple agonist that targets GIP, GLP-1, and glucagon (GCGR) receptors. In published Phase 2 trial data, this mechanism has been associated with effects on appetite, insulin sensitivity, and energy expenditure. Long-term safety, efficacy, and approved indications are still under evaluation by regulators.
Information on this page summarizes publicly available trial data and is provided for educational purposes only. It is not a recommendation, prescription, or offer to dispense any specific medication, and is not a substitute for individualized medical advice from a licensed clinician.
Trial data summary
What the published research has shown so far.
Triple receptor target: GIP + GLP-1 + GCGR
Studied for metabolic and appetite regulation
Investigated for fat mass reduction in trials
Studied for energy expenditure effects
Investigational — not FDA-approved
Comprehensive medical screening required
Clinician-only candidacy determination
Integrated lab and body composition monitoring
How an evaluation works
Candidacy is determined by your clinician.
Because retatrutide is investigational, any clinical decision involves a thorough review of your goals, medical history, labs, contraindications, and the full range of FDA-approved alternatives. We do not market or guarantee prescribing of any specific therapy.
- 01Detailed health intake & comprehensive labs
- 02Medical review & personalized candidacy assessment
- 03Custom retatrutide protocol design
- 04Injection training & home supply kit
- 05Monthly body composition & progress review
- 06Ongoing metabolic optimization & support
Context
Investigational therapy, evidence-based context.

Investigational compound
Not FDA-approved; not commercially available as a finished drug product.

Whole-program approach
Nutrition, training, and labs frame every weight-loss decision.

Body composition data
Objective measurement informs any clinical recommendation.
FAQ
Common questions.
Is retatrutide FDA-approved?
No. Retatrutide is an investigational compound currently in Phase 2 and Phase 3 clinical trials and is not approved by the FDA for any indication, including weight loss. Information on this page is educational only and is not an offer, solicitation, or guarantee of treatment.
How does retatrutide differ from semaglutide and tirzepatide?
In published clinical trial data, retatrutide has been studied as a triple agonist that acts on GIP, GLP-1, and glucagon (GCGR) receptors simultaneously. By contrast, semaglutide is a single GLP-1 agonist and tirzepatide is a dual GIP/GLP-1 agonist. These mechanistic differences are still being characterized in ongoing studies.
Can I get a prescription for retatrutide at Body Tonic RX?
Any decision regarding compounded preparations is made solely by an independently licensed clinician on a case-by-case basis after a comprehensive medical evaluation, and only where the clinician determines it is medically appropriate and legally permissible. We do not guarantee prescribing of any specific therapy.
How would I learn more?
Schedule a consultation with a Body Tonic RX clinician. During your evaluation, you can discuss your goals, medical history, and the full range of FDA-approved and compounded therapies that may be appropriate for you.
Have questions?
Speak with a clinicianabout your weight-loss goals.
Consultations explore the full range of FDA-approved and compounded therapies appropriate for you. We do not market or guarantee any specific medication.
Safety information
Important GLP-1 / incretin safety information.
This page is for educational purposes only and is not a substitute for individualized medical advice. Discuss your full medical history, medications, and supplements with your clinician before starting any prescription therapy.
Boxed warnings & precautions
- Investigational compounds have not been fully evaluated for long-term safety. Many of the GI, pancreatic, gallbladder, and thyroid risks observed with approved GLP-1/GIP agonists may also apply.
- Risk of severe gastrointestinal effects, including nausea, vomiting, and dehydration.
- Potential risk of pancreatitis, gallbladder disease, and acute kidney injury.
- Potential risk of thyroid C-cell tumors based on related compound class.
- May reduce oral medication absorption, including oral contraceptives.
Do not use if
- Personal or family history of medullary thyroid carcinoma (MTC).
- Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).
- Pregnancy, planning pregnancy, or breastfeeding.
- Active severe gastrointestinal disease, including severe gastroparesis.
- Any condition your clinician determines makes investigational therapy inappropriate.
Common side effects
- Nausea, vomiting, diarrhea, constipation (commonly reported in trials of related compounds)
- Decreased appetite, early satiety
- Fatigue, injection-site reactions
Serious side effects — seek care
- Severe or persistent abdominal pain (possible pancreatitis)
- Neck mass, hoarseness, persistent difficulty swallowing (possible thyroid concern)
- Severe allergic reaction — hives, swelling, trouble breathing
- Right upper-abdominal pain, fever, jaundice (possible gallbladder disease)
Report suspected adverse reactions to your care team immediately or to safety@mybodytonic.com. Serious adverse events should also be reported to the FDA at FDA MedWatch.
Keep exploring
Explore related therapies
Semaglutide Weight Loss
FDA-approved GLP-1 therapy for steady, sustainable fat loss.
Learn more →
Tirzepatide Weight Loss
Dual GIP/GLP-1 agonist for accelerated weight loss results.
Learn more →
Peptide Therapy
BPC-157, Ipamorelin, GHK-Cu and more — provider supervised.
Learn more →
IV Therapy
Hydration, immunity, beauty, recovery, and NAD+ infusions.
Learn more →
DEXA Body Composition Scan
Gold-standard body fat, lean mass, and bone density imaging.
Learn more →
