Peptide Comparison

    Semaglutide vs Tirzepatide

    Two FDA-approved metabolic peptides for weight loss and type 2 diabetes. Semaglutide is a GLP-1 agonist; tirzepatide is a dual GIP/GLP-1 agonist with superior weight-loss data in head-to-head trials.

    Semaglutide

    Semaglutide is a GLP-1 receptor agonist FDA-approved for type 2 diabetes (Ozempic) and chronic weight management (Wegovy). Clinical trials demonstrate significant reductions in body weight and cardiovascular risk markers. It works by enhancing insulin secretion, suppressing glucagon, and reducing appetite.

    Semaglutide Clinical Reference

    Tirzepatide

    Tirzepatide is a dual GIP/GLP-1 receptor agonist FDA-approved for type 2 diabetes (Mounjaro) and weight management (Zepbound). It has shown superior weight loss outcomes compared to semaglutide in head-to-head trials. The dual-agonist mechanism provides enhanced metabolic benefits.

    Tirzepatide Clinical Reference

    Key Differences

    Category
    Semaglutide
    Tirzepatide
    Mechanism
    GLP-1 receptor agonist.
    Dual GIP and GLP-1 receptor agonist.
    Brand names
    Ozempic (diabetes), Wegovy (weight loss), Rybelsus (oral).
    Mounjaro (diabetes), Zepbound (weight loss).
    Weight-loss data
    See the TruthTides evidence library for graded study summaries.
    See the TruthTides evidence library for graded study summaries.
    FDA status
    FDA-approved for T2D and chronic weight management.
    FDA-approved for T2D and chronic weight management.

    This comparison is informational and reflects content from TruthTides clinical reference documentation. It does not constitute medical advice. Only three peptides on TruthTides — semaglutide, tirzepatide, and tesamorelin — carry FDA approvals; many others are compounded or off-label. Consult a qualified physician before starting any peptide therapy.