Understanding GLP-1 Dosing: When and How to Adjust

Understanding GLP-1 Dosing: When and How to Adjust

2025-04-05 · 6 min read

GLP-1 therapy is not a one-size-fits-all, set-it-and-forget-it treatment. Your dose will change over time, and managing that process thoughtfully is key to both tolerating the medication and achieving your goals. Here's a comprehensive guide to GLP-1 dosing.

Why GLP-1 Uses a Titration Schedule

All GLP-1 medications start at a low dose and increase in steps, typically every 4 weeks. This gradual escalation serves two purposes: it allows your body to adapt to the medication's effects on gastric motility (reducing side effects), and it identifies the minimum effective dose for each individual.

Standard Titration Schedules

Semaglutide (Ozempic/Wegovy)

  • Week 1-4: 0.25mg weekly (starter dose, not therapeutic)
  • Week 5-8: 0.5mg weekly
  • Week 9-12: 1.0mg weekly
  • Week 13+: 1.7mg weekly (Wegovy only)
  • Week 17+: 2.4mg weekly (Wegovy maintenance)

Tirzepatide (Mounjaro/Zepbound)

  • Week 1-4: 2.5mg weekly (starter dose)
  • Week 5-8: 5mg weekly
  • Week 9-12: 7.5mg weekly
  • Week 13-16: 10mg weekly
  • Week 17-20: 12.5mg weekly
  • Week 21+: 15mg weekly (maximum dose)

When to Delay a Dose Increase

The standard schedule assumes adequate tolerance at each dose level. It is completely appropriate — and often advisable — to stay at a given dose for longer than 4 weeks if:

  • Nausea or vomiting is severe enough to affect daily function
  • You're unable to maintain adequate hydration or nutrition
  • You're within 2-3 weeks of a major life event (surgery, travel, stressful period) where side effects would be especially disruptive
Delaying a dose increase is not failing — it's smart titration. Patients who push through severe side effects to escalate faster often end up stopping the medication entirely. Slower is sustainable.

What If You Need to Drop Back a Dose?

If side effects at a higher dose are unmanageable, your doctor may recommend dropping back to the previous dose level. This is a recognized strategy, not a setback. Re-escalating from a lower dose after a few more weeks at that level is perfectly reasonable.

Maintenance Dose vs. Maximum Dose

Not everyone needs to reach the maximum dose to achieve their goals. Some patients achieve excellent blood sugar control or weight loss at intermediate doses and choose to maintain there. The right dose is the one that delivers results with acceptable tolerability — not the highest dose possible.

Missed Doses and Dose Timing

For weekly injections:

  • If you missed your injection by 1-5 days: take it as soon as possible, then resume your regular schedule
  • If you're within 2 days of your next scheduled injection: skip the missed dose and take the next one as scheduled
  • Never take two doses in one week to make up for a missed dose

You can change your injection day permanently if needed — take the new day's dose, then wait the full interval before the next one.

Tracking Doses Precisely

Accurate dose tracking is more important than most patients realize. Inconsistent injection timing can affect the steady-state level of the medication in your blood, influencing both side effects and efficacy. A day or two of variation is fine; habitually injecting 3-4 days late disrupts your medication levels.

ShotFlow's medication tracker logs your exact injection time and calculates your precise next injection window. The app alerts you when you're approaching your window so you can plan your injection day strategically.

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