Days 0–90: ascending through dose tiers. Major patterns and milestones.
About this article
Reviewed byDr. J. Bottoni, M.D.
RoleEditor-in-Chief, Medicine
First publishedMay 20, 2026
Last reviewedMay 20, 2026
Page typeIn-depth editorial guide
Sources15+ cited sources
Days 0–28: 0.25 mg sema / 2.5 mg tirz
Initiation tier. Tolerance development. Modest weight loss (2–6 lb typical).
Days 28–56: 0.5 mg sema / 5 mg tirz
First effective dose for many patients. Appetite reduction more pronounced. Weight loss accelerates (additional 4–8 lb typical).
Days 56–84: 1.0 mg sema / 7.5 mg tirz
Approaching maintenance for many. Weight loss continuing (additional 4–8 lb typical).
Days 84–90: review
Lab follow-up at 90 days. Assess tolerance, response, and plan further titration or hold at current dose.
Total 90-day weight loss
Typical: 10–22 lb (5–10% of starting weight). Trial data shows ongoing weight loss through 68–72 weeks at maintenance dose.