Tirzepatide Titration Schedule: 2.5mg to 15mg Explained

Tirzepatide is escalated slowly to let receptors adjust. Jumping straight to a high dose causes nausea, fatigue and lost weeks of consistency. This is the standard UK research titration.

The full schedule

WeeksWeekly doseNotes
1–42.5 mgStarter dose. Side effects, if any, settle quickly.
5–85 mgFirst "active" dose. Appetite suppression usually clear.
9–127.5 mgOptional step; many researchers skip if 5 mg is working.
13–1610 mgStandard maintenance for most.
17–2012.5 mgUpper-mid range.
21+15 mgMaximum studied dose.

Titration rules

  • Never skip more than one level at a time.
  • Hold a dose for an extra month if side effects are present.
  • Reduce by one level (not zero) if side effects become intolerable.
  • Inject the same day each week — Saturday morning is popular for UK buyers because side effects, if any, fall over the weekend.

Injection sites

Subcutaneous: abdomen, upper thigh, back of the upper arm. Rotate sites weekly.

Frequently asked questions

How long should I stay on each dose?

A minimum of 4 weeks. Longer is fine if it is working.

What if I miss a week?

Resume at the same dose if the gap is under 2 weeks. Drop one level if longer.

Can I stop at 5 mg?

Yes — many researchers maintain at 5 mg or 7.5 mg if the effect is sufficient.

Where do I get tirzepatide?

Our tirzepatide page stocks every vial size with UK next-day delivery.

This guide is provided for informational purposes by Next Day Pharma. All peptides supplied are FOR RECONSTITUTION. Always consult a qualified healthcare professional before use.