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
| Weeks | Weekly dose | Notes |
|---|---|---|
| 1–4 | 2.5 mg | Starter dose. Side effects, if any, settle quickly. |
| 5–8 | 5 mg | First "active" dose. Appetite suppression usually clear. |
| 9–12 | 7.5 mg | Optional step; many researchers skip if 5 mg is working. |
| 13–16 | 10 mg | Standard maintenance for most. |
| 17–20 | 12.5 mg | Upper-mid range. |
| 21+ | 15 mg | Maximum 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.
Related guides
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.