Mounjaro
If you’re new to Mounjaro (tirzepatide), you’ve probably heard that the dose increases gradually over time.
But knowing exactly when to move up can be confusing — especially when your goal is steady, safe, and effective weight loss.
At PPRX Online Pharmacy, our pharmacists explain everything you need to know about Mounjaro dosing — from your first injection to your maintenance phase — so you can stay on track with confidence.
How Mounjaro Dosing Works
Mounjaro comes in a series of pre-filled KwikPens. Each pen contains four doses (4-week supply).
You inject once a week, on the same day each week.
The purpose of the dose escalation plan is to:
- Help your body adapt to the medication
- Reduce the risk of side effects like nausea
- Achieve gradual, sustainable weight loss
Typical Mounjaro Dose Schedule
| Stage | Dose (mg) | Duration | Purpose |
|---|---|---|---|
| 1 | 2.5 mg | 4 weeks | Starter dose to help your body adjust |
| 2 | 5 mg | 4 weeks | Appetite control begins to strengthen |
| 3 | 7.5 mg | 4 weeks | Enhanced hunger reduction |
| 4 | 10 mg | 4 weeks | Greater metabolic and weight effect |
| 5 | 12.5 mg | 4 weeks | For continued weight loss if tolerated |
| 6 | 15 mg | Ongoing | Maintenance dose for long-term results |
Each stage typically lasts 4 weeks, though your prescriber may adjust this based on how well you tolerate the medicine.
When to Increase Your Mounjaro Dose
You can increase your dose every 4 weeks, only if:
- You’ve tolerated your current dose with minimal side effects
- You still feel hungry between meals
- You haven’t achieved expected progress after 4–6 weeks
If you experience persistent nausea, vomiting, or fatigue — stay on your current dose longer before increasing.
Always confirm with your prescriber before moving up.
When Not to Increase the Dose
- If you’re still experiencing moderate nausea or stomach discomfort
- If you’ve missed an injection recently (wait until your next cycle)
- If your appetite is already well-controlled and you’re losing steadily
Increasing too fast can worsen side effects or cause you to lose weight too quickly — which isn’t sustainable long-term.
Mounjaro Strengths and Prices (October 2025)
Each KwikPen provides four once-weekly doses — a 4-week supply.
| Strength | Price |
|---|---|
| 2.5 mg | £199.99 |
| 5 mg | £219.99 |
| 7.5 mg | £299.99 |
| 10 mg | £319.99 |
| 12.5 mg | £334.99 |
| 15 mg | £349.99 |
All prices include your free consultation, private prescription, and next-day cold-chain delivery.
➡️ Buy Mounjaro UK – PPRX Online Pharmacy
➡️ Complete Your Free Consultation
Pharmacist Advice for Safe Dosing
- Inject on the same day each week for stable results.
- Never double a dose if you miss one.
- Store pens in the fridge (2°C – 8°C) and never freeze.
- Use a new needle each time.
- Contact your pharmacist before adjusting the dose.
FAQs
How long should I stay on each dose?
Usually four weeks, but longer if you’re still adjusting or experiencing side effects.
Can I skip the lower doses and start higher?
No — starting higher increases the risk of nausea and fatigue. Always begin with 2.5 mg.
What’s the best dose for weight loss?
Many patients reach optimal results around 10 mg – 15 mg, but it varies per person.
What if I forget an injection?
If it’s been less than 4 days since your scheduled dose, inject as soon as you remember. Otherwise, wait until your next scheduled day.
Pharmacist Review
This guide was written and verified by a GPhC-registered pharmacist following MHRA and NICE guidance for safe tirzepatide prescribing in the UK.
Start your order today at www.pprx.co.uk

At PPRX UK, we provide:
- Genuine Mounjaro pens, sourced directly from the manufacturer (Eli Lilly)
- Dispensing via a GPhC-registered UK pharmacy
- Professional consultations with UK pharmacists
- Ongoing support, dosage guidance, and repeat supply options
Whether you’re just starting or switching from Ozempic or Wegovy, we’re here to help.

📞 Get in Touch
Visit www.pprx.co.uk or contact us directly to begin your online consultation.
We offer fast, discreet UK-wide delivery and exceptional support throughout your journey.
Mounjaro is a prescription-only medicine. This article is for informational purposes only and does not replace medical advice. Always consult a qualified healthcare provider before starting treatment. nhs
