Retatrutide vs Tirzepatide: 28.7% vs 20.9% (2026) Does Tirzepatide Cause Insomnia & What You Can Do about It? MeAgain How Does Retatrutide Work? PRIME Medicine Low dose naltrexone is generally well tolerated, but some patients feel initial changes: vivid dreams temporary sleep changes mild nausea or headache These usually improve as the dose titrates. Less often, Compounded Tirzepatide