What is the recommended starting dose of retatrutide?

Based on Phase 2 clinical trials, retatrutide is typically started at 0.5mg weekly. This low starting dose helps minimize gastrointestinal side effects. Dose escalation occurs every 4 weeks until reaching the target maintenance dose.

What is the maximum dose of retatrutide?

In Phase 2 trials, the highest dose tested was 12mg weekly, which showed approximately 24% weight loss. However, significant weight loss was also achieved at 8mg (17.5%) and 4mg doses. The optimal maintenance dose will be determined by Phase 3 trials.

How often is retatrutide injected?

Retatrutide is administered once weekly via subcutaneous injection. The injection can be given in the abdomen, thigh, or upper arm. Rotating injection sites is recommended to prevent lipodystrophy.

What happens if I miss a dose?

If a dose is missed, take it as soon as you remember within 3 days of the scheduled day. If more than 3 days have passed, skip the missed dose and continue with your regular schedule. Do not double doses.

How long does retatrutide take to work?

Most people notice reduced appetite within the first 1-2 weeks. Visible weight loss typically begins by week 4-6. Maximum weight loss occurs over 48+ weeks of consistent use, with the most significant losses seen in the 12-24 week range.

PeptideKey Research Library

Retatrutide: Dosage Guide [Evidence-Backed]

Find comprehensive Retatrutide dosage guidelines for research. Understand optimal concentrations, administration, and critical safety considerations for effective and ethical studies.

This research guide is part of PeptideKey's evidence-based peptide research library covering 100+ compounds with lab-verified purity data.