Beta notice: PeptiJournal is currently in beta. Calculator math and RUO research protocol summaries should be independently double-checked against source literature before use in any research workflow.

    §Weight LossResearch protocol

    Retatrutide.

    Retatrutide is an investigational triple-receptor agonist peptide (targets GLP-1, GIP, and glucagon receptors) under development for obesity and type 2 diabetes[1][2]. Phase 2 trials demonstrated r...

    Vial Size:
    Research Use Only. PeptiJournal supports private research documentation and calculation support. It does not provide medical advice, human-use directions, or claims of safety or effectiveness.

    Cited diluent1 mL

    Cited protocol example—review and confirm.

    Per-event reference amount by cited phase

    Reference syringe capacity

    Concentration
    5,000
    mcg/mL
    Per event
    2 mg
    1 events/week
    Vials projected
    No finite cited cycle

    Calculated volume reference

    0255075100

    40.0 units

    1mL syringe

    Retatrutide
    40.0u(0.400 mL)
    Once weekly

    Cited protocol & reconstitution guide

    Source-backed reference fields by phase, including any volume fields authored in the cited guide.

    Weeks 1–4

    2 mg (2000 mcg)

    Units / volume40 units (0.40 mL)

    Weeks 5–8

    4 mg (4000 mcg)

    Units / volume80 units (0.80 mL)

    Weeks 9–12

    6 mg (6000 mcg)

    Units / volume120 units (1.20 mL)

    Weeks 13+

    8 mg (8000 mcg)

    Units / volume160 units (1.60 mL)

    Reconstitution by vial size

    Calculated volume for each cited phase and vial variant. The highlighted column matches the selection above.

    Phase
    5 mg
    1 mL water
    10 mg
    1 mL water
    20 mg
    2 mL water
    30 mg
    3 mL water
    Weeks 1–4
    40 u
    0.40 mL
    20 u
    0.20 mL
    20 u
    0.20 mL
    20 u
    0.20 mL
    Weeks 5–8
    80 u
    0.80 mL
    40 u
    0.40 mL
    40 u
    0.40 mL
    40 u
    0.40 mL
    Weeks 9–12
    120 u
    1.20 mL
    ×2 vials
    60 u
    0.60 mL
    60 u
    0.60 mL
    60 u
    0.60 mL
    Weeks 13+
    160 u
    1.60 mL
    ×2 vials
    80 u
    0.80 mL
    80 u
    0.80 mL
    80 u
    0.80 mL

    Cited guide source: View source