What is Retatrutide? Dosage & Preparation Guide

Overview

Retatrutide is a peptide designed to help support metabolic regulation and assist with weight management through once-weekly subcutaneous injections. This protocol outlines how to prepare, dose, and store a 10 mg vial for a flexible weekly dosing schedule.

Key Points

• Typical starting range: 0.5 - 2 mg per week (once weekly)
• Injections are done subcutaneously (under the skin) once a week
• The peptide is reconstituted (mixed with bacteriostatic water) for accurate dosing
• Storage recommendations differ before and after reconstitution

Mixing / Reconstitution

Standard Method (Lower Concentration)

Add 2.0 mL of bacteriostatic water to the vial — results in a 5 mg/mL solution.

Steps:

Draw 2.0 mL bacteriostatic water into a sterile syringe.

Slowly inject along the vial wall to avoid foam.

Gently swirl the vial until dissolved.

Refrigerate the reconstituted solution (2-8°C).

Weekly Dosing Options

Gradual / Standard Titration

| Weeks | Dose per Week | Approx. Units (U-100 syringe) |

|-------|---------------|-------------------------------|

| Weeks 1-4 | 0.5 mg | ~10 units |

| Weeks 5-8 | 1 mg | ~20 units |

| Weeks 9-12 | 2 mg | ~40 units |

| Optional Weeks 13-16 | 4 mg | ~80 units |

This approach is ideal for starting slowly and increasing dosage as tolerance allows.

Advanced / Higher-Dose Method

| Weeks | Dose per Week | Approx. Units |

|-------|---------------|---------------|

| Weeks 1-4 | 2 mg | ~20 units |

| Weeks 5-8 | 4 mg | ~40 units |

| Weeks 9-12 | 8 mg | ~80 units |

| Optional Weeks 13-16 | 12 mg | ~120 units |

Supplies to Have Ready

For an 8-16 week cycle you'll generally need:

Retatrutide vials (10 mg each)

Insulin syringes (U-100)

Bacteriostatic water

Alcohol swabs

Protocol Summary

• Injection frequency: Once weekly, subcutaneously
• Dose range: 0.5 - 12 mg per week, depending on goals and tolerance
• Cycle length: Typically 8-12 weeks or longer as needed
• Consistency matters: Inject on the same day each week for best results

Storage Recommendations

• Keep the lyophilized (dry) vial frozen until reconstitution
• After mixing, store the peptide in the refrigerator at 2-8°C

Important Notes

• Use new sterile syringes for each injection
• Rotate injection sites to avoid irritation
• Observe for side effects and adjust dose gradually if needed
• This is informational content — always consult a qualified health professional before using peptides