oMeds
All comparisons
Comparison · metabolic

Tirzepatide vs Retatrutide

Tirzepatide is an FDA-approved dual GIP/GLP-1 receptor agonist used in metabolic optimization. Retatrutide is an investigational triple-agonist (GIP/GLP-1/glucagon) with promising Phase 2 data but is not yet FDA-approved for clinical use.

Reviewed by Dr. Laura PurdyMay 29, 2026
Attribute
Tirzepatide
Retatrutide (investigational)
Mechanism
GIP + GLP-1 agonist
GIP + GLP-1 + glucagon agonist
FDA status
Approved (Mounjaro/Zepbound)
Investigational
Average weight loss
~21% at 72 weeks (SURMOUNT-1)
~24% at 48 weeks (Phase 2)
Dosing cadence
Weekly
Weekly (trial dosing)
Availability
Available in oMeds metabolic pathway
Not available — trial only
Pathway
Metabolic optimization
Not offered by oMeds
Choose Tirzepatide

Tirzepatide is the modern dual-agonist standard for metabolic optimization, available in the oMeds weight-loss pathway.

Choose Retatrutide (investigational)

Retatrutide is investigational and not clinically available; candidates interested in triple-agonist therapy are routed to trial enrollment via external referral.

Educational. Final pathway selection is provider-reviewed via synchronous video consultation against your biomarkers, history, and goals.

Frequently asked

When will retatrutide be available?

Pending Phase 3 readout and FDA review; not on a current clinical timeline.

Is tirzepatide enough for most candidates?

For most metabolic optimization candidates, tirzepatide is provider-reviewed as sufficient. Candidacy is biomarker- and goal-driven.

Next step

Take the optimization assessment.

The adaptive assessment maps your symptoms, history, and goals to candidate pathways — and routes you into provider review.

Begin assessment