Tirzepatide dosing protocol Tirzepatide follows a well-established escalation schedule refined through multiple clinical trials and years of real-world use: Weeks 1-4: 2.5 mg once weekly (starting dose) Weeks 5-8: 5 mg once weekly Weeks 9-12: 7.5 mg once weekly (optional intermediate step) Weeks 13-16: 10 mg once weekly Weeks 17-20: 12.5 mg once weekly (optional intermediate step) Week 21+: 15 mg once weekly (maximum dose) The starting dose of 2.5 mg is intentionally subtherapeutic
Jun 12, 2026 What are Semaglutide, Tirzepatide, and Retatrutide
Research-grade peptides from chemical suppliers are often impure or contaminated
It is important to inform treating clinicians of all substances being used, including peptides, to enable safe and accurate assessment
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For weight loss, the average effect is modest , and the evidence base is not comparable to semaglutide