Research

Hormonal

Retatrutide increases the incidence of adverse events, particularly nausea, vomiting, and decreased appetite, in a dose-dependent manner compared to placebo.

While effective, retatrutide causes more side effects than placebo, including nausea, vomiting, and constipation. These side effects increase with higher doses (8mg and 12mg). Patients should be prepared for these potential issues, which may affect adherence.

GoodQualifiesHIGH confidence
Compared to placebo, patients receiving retatrutide experienced higher occurrences of nausea, vomiting, decreased appetite, diarrhea, and constipation.
Alaa Abdrabou Abouelmagd et al. · Baylor University Medical Center Proceedings · 2025

Why this rating

Based on the same 3 RCTs; safety data was consistent across doses.

Source

Efficacy and safety of retatrutide, a novel GLP-1, GIP, and glucagon receptor agonist for obesity treatment: a systematic review and meta-analysis of randomized controlled trials

Alaa Abdrabou Abouelmagd et al. · Baylor University Medical Center Proceedings · 2025

DOI 10.1080/08998280.2025.2456441

Meta-analysis · 3 studiesCited 14×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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