Retatrutide Overview

Retatrutide Overview

Retatrutide Overview

Quickstart Highlights

Retatrutide is a novel triple agonist targeting GLP-1, GIP, and glucagon receptors, studied for substantial weight loss and metabolic improvement in obesity and type 2 diabetes. With an extended half-life of approximately 6 days, this peptide enables convenient once-weekly subcutaneous dosing with a gradual titration protocol to optimize tolerability.

  • Reconstitute (10mg vial): Add 2.0 mL bacteriostatic water → 5.0 mg/mL concentration for convenient weekly doses.
  • Typical weekly range: 2–12 mg once weekly (gradual escalation over 12+ weeks).
  • Easy measuring: At 5.0 mg/mL, 1 unit = 0.01 mL ≈ 50 mcg on a U-100 insulin syringe.
  • Storage: Lyophilized: freeze at −20 °C; after reconstitution, refrigerate at 2–8 °C and use within 2–4 weeks.

Dosing & Reconstitution Guide (10mg Vial)

Standard / Gradual Titration Approach (2 mL = 5.0 mg/mL)

Week(s) Weekly Dose Units (per injection)
Weeks 1–4 2,000 mcg (2 mg) 40 units (0.40 mL)
Weeks 5–8 4,000 mcg (4 mg) 80 units (0.80 mL)
Weeks 9–12 8,000 mcg (8 mg) 160 units (1.60 mL)
Weeks 13+ 12,000 mcg (12 mg) 240 units (2.40 mL)

Frequency: Inject once weekly subcutaneously.

Reconstitution Steps

  1. Draw 2.0 mL bacteriostatic water with a sterile syringe.
  2. Inject slowly down the vial wall; avoid foaming.
  3. Gently swirl/roll until dissolved (do not shake vigorously).
  4. Label with reconstitution date and refrigerate at 2–8 °C, protected from light.