If you have been prescribed Mounjaro (tirzepatide) and want to understand how to use it correctly, this guide explains everything you need to know. Mounjaro is a once-weekly injection used for weight loss and blood sugar control and must be taken exactly as prescribed to ensure safety and effectiveness.
This page explains how to use the Mounjaro KwikPen step by step, where to inject it, how often to take it, and what to check before each dose. A full video demonstration is included to help you feel confident before your first injection.
How To Use Mounjaro KwikPen
What Is Mounjaro and How Is It Taken
Mounjaro is supplied as a pre-filled injection pen containing a fixed weekly dose. It is injected under the skin once per week, on the same day each week. The injection is not taken daily and should never be injected into a vein or muscle.
Each pen is designed for ease of use and includes a hidden needle system to reduce discomfort.
What You Will Need Before Injecting
Before using Mounjaro, make sure you have:
• Your Mounjaro KwikPen
• A new needle (if supplied separately)
• An alcohol wipe
• A sharps bin for safe disposal
Always check the label to confirm the correct dose and ensure the medicine is within its expiry date.
Where to Inject Mounjaro
Mounjaro is injected into the fatty tissue just under the skin. Recommended injection sites include:
• Abdomen (at least 5 cm away from the belly button)
• Front of the thighs
• Upper outer arm (if someone else is administering the injection)
Rotate injection sites each week to reduce irritation and skin discomfort.
How to Use the Mounjaro KwikPen – Step by Step
Wash your hands thoroughly
Remove the pen cap and check the medicine is clear and colourless
Attach a new needle if required and remove the needle caps
Select the full dose as instructed
Clean the injection site with an alcohol wipe
Insert the needle into the skin at a 90-degree angle
Press and hold the injection button until it stops
Slowly count to five to ensure the full dose is delivered
Remove the needle and dispose of it safely in a sharps bin
Always check the dose window shows zero after injection to confirm the dose has been delivered.
How Often to Take Mounjaro
Mounjaro is taken once weekly, on the same day each week. You can take it at any time of day, with or without food.
If you miss a dose and it is within four days of your scheduled injection, take it as soon as possible. If more than four days have passed, skip the missed dose and take the next dose on your usual day.
Do not take two doses within the same week.
Starting Dose and Dose Increases
Most patients begin on a low starting dose to allow the body to adjust. The dose may be increased gradually over time depending on response and tolerance.
Never increase your dose unless instructed by your prescriber.
Storage Instructions
Before first use, Mounjaro should be stored in a refrigerator. Once in use, it can be kept at room temperature for a limited time as advised by your pharmacy.
Do not freeze Mounjaro and do not use it if it has been exposed to extreme temperatures.
Why patients in London choose PPRX
UK-registered prescribers
Regulated pharmacy supply
Online consultation without GP visits
Cold-chain next-day delivery
Optional same-day delivery for eligible postcodes
Ongoing pharmacist support
Order Process
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1. Not Sure What You Need?
Reach out to our expert team by phone, email, or WhatsApp for quick and personalised recommendations tailored to your health needs.
2. Choose Your Treatment
Following your consultation or online assessment, you can easily select the product, dosage, and treatment plan that works best for you.
3. Add to Basket & Checkout
Place your chosen items in the basket and proceed with our simple, secure, and fully protected online checkout process.
4. Personalised Expert Care
One of our licensed prescribers will contact you promptly to confirm your details and ensure the right treatment plan is provided.
5. Fast, Discreet Delivery
Your treatment will be shipped the next working day, packaged securely to ensure complete privacy, confidentiality, and discretion.
Mounjaro (Tirzepatide)
Mounjaro (Tirzepatide) is a once-weekly injectable prescription medicine used to aid in weight loss and improve blood sugar levels in adults with type 2 diabetes. It works by reducing appetite, increasing feelings of fullness, and supporting a healthy lifestyle program for effective weight management.
Key Benefits
Clinically proven to support significant weight loss when combined with diet and exercise. Improves blood sugar control in adults with type 2 diabetes. Once-weekly dosing for convenience and consistency.
How To Use
Tirzepatide is injected under the skin (subcutaneously) once a week, at any time of the day, with or without meals. Follow the instructions provided or refer to the patient information leaflet included with the product.
Available Dosages
2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg
Active Ingredient: Tirzepatide
Administration: Subcutaneous injection
Mounjaro Prices
Our pricing is transparent and consistent across the UK:
2.5mg £194.99
5mg £214.99
7.5mg £274.99
10mg £304.99
12.5mg £324.99
15mg £349.99
UK-wide availability
PPRX supplies Mounjaro to patients across England, Scotland and Wales through a regulated online prescription service.
Contact Us for Support or General Questions
Are you feeling unsure or have questions about weight loss pens? We understand it can be overwhelming, but you’re not alone. Our skilled pharmacists are here to help, offering free consultations via phone, email or WhatsApp. Reach out today, and let us guide you every step of the way.
- WhatsApp me
- Info@pprx.co.uk
- 0208 191 3034
Mounjaro FAQs
Most frequent questions and answers
Mounjaro is the brand name for tirzepatide, a once-weekly prescription injection used for weight management under clinical supervision. It works on GLP-1 and GIP receptors to reduce appetite and improve blood sugar control.
Each pen provides four once-weekly doses, so one pen lasts four weeks when used as directed.
Yes. Mounjaro is prescription-only. With PPRX you complete a free online consultation; if clinically suitable, our prescriber issues a private prescription and we dispense the medicine.
No. It is not legally available without a prescription. Our service includes the private prescription following prescriber approval.
Suitability is assessed by a clinician. It is generally considered for adults as part of a weight-management plan when clinically appropriate. It is not for under-18s, pregnancy or breastfeeding.
Complete the free consultation form at https://www.pprx.co.uk/weightlossc/ and choose your strength on the product page at https://pprx.co.uk/product/mounjaro/. A prescriber reviews your answers; if approved, we dispense and ship with next-day delivery in cold-chain packaging.
Product, private prescription, pharmacist support and next-day delivery with a cold pack. Needles are included where applicable for the device supplied.
Inject once a week, on the same day each week, into the abdomen, thigh or upper arm. Rotate injection sites and follow the instructions provided by your prescriber and the patient information leaflet.
Common UK strengths are 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg and 15 mg pens. Doses are usually increased gradually under prescriber guidance.
Many people notice appetite changes within weeks, but weight loss varies. Best results come with sustained weekly dosing, nutrition and activity changes, and prescriber follow-up.
If you miss a dose, follow the instructions in the patient information leaflet or contact our pharmacy team. Do not double dose to make up for a missed injection.
Yes, but keep it within the recommended storage conditions and carry it in original packaging with your prescription details. If flying, use hand luggage and keep it cool as advised in the leaflet.
Keep refrigerated at 2–8°C. Do not freeze. Protect from light. Follow the patient information leaflet for any permitted time at room temperature and always discard if storage conditions have not been met.
The most reported are nausea, indigestion, stomach discomfort, constipation or diarrhoea, especially when starting or increasing dose. Seek medical advice urgently if you have severe or persistent abdominal pain or signs of an allergic reaction.
Tell the prescriber about all medicines you take. Some medicines (including for diabetes) may need review when starting Mounjaro.
Moderation is advised. Alcohol can affect blood sugar and appetite and may worsen stomach side effects.
Availability and eligibility are determined by NHS guidance and your local service. PPRX offers a private service for eligible adults following clinical assessment.
Current private prices are shown on the product page. Prices include the consultation, prescription review and next-day delivery.
Email info@pprx.co.uk or message us on WhatsApp for product support, dosing guidance and order queries.
If you need larger-print leaflets, alternative languages or help with injection technique, contact our team and we’ll support you.