LeanGLP

Zepbound (tirzepatide) titration schedule — straight from the FDA label

By The LeanGLP Team · Label information verified 2026-08-05

This is label information, not a recommendation. The table below reproduces the escalation schedule from the official U.S. prescribing information so you can understand what a typical plan looks like. Your prescriber sets your actual doses and timing — follow their instructions, not this page. This site never computes patient-specific doses.

Zepbound is tirzepatide, a once-weekly subcutaneous injection from Eli Lilly. Chronic weight management in adults with obesity or overweight with a weight-related condition, plus moderate-to-severe obstructive sleep apnea in adults with obesity — per the prescribing information.

Dose-escalation schedule (per the prescribing information)

PeriodDoseLabel note
Weeks 1-42.5 mg once weeklyLabel: 2.5 mg is for treatment initiation and is not approved as a maintenance dosage.
Weeks 5-85 mg once weekly
After ≥4 weeks per stepIncrease in 2.5 mg increments (7.5 → 10 → 12.5 → 15 mg)Each increase only after at least 4 weeks on the current dose.

Maintenance dosing

Recommended maintenance dosages: 5 mg, 10 mg, or 15 mg once weekly. Maximum: 15 mg once weekly.

Plain-language notes

  • The fastest possible path from 2.5 mg to 15 mg is 20 weeks — most people stop at 5, 10, or 15 mg based on response and tolerability.
  • Escalation exists to reduce gastrointestinal side effects; prescribers commonly hold a dose longer when tolerability is poor.

Why the slow ramp exists

Every GLP-1 label escalates gradually for the same stated reason: reducing gastrointestinal side effects while the body adapts. For nutrition planning, the escalation window is when appetite suppression tends to hit hardest — which is exactly when protein intake usually craters. That's the problem our GLP-1 protein calculator and week-one meal plan are built for.

Sources

Schedules can change when the FDA approves label revisions — the links above always point at the current official documents. If you spot a discrepancy, tell us and we'll correct it fast.

Frequently asked questions

How long do you stay on 2.5 mg of Zepbound?

Per the label, 2.5 mg once weekly is taken for 4 weeks, then increased to 5 mg. The 2.5 mg dose is for treatment initiation, not maintenance. Your prescriber may adjust the plan.

What are the Zepbound maintenance doses?

The prescribing information lists 5 mg, 10 mg, and 15 mg once weekly as recommended maintenance dosages, with 15 mg as the maximum.