Single Pen Mounjaro: Compare Side Effects vs Semaglutide

  • Single pen available in all six doses (2.5mg-15mg)
  • From £129.99 first order with FIRST40 discount code
  • Clinical comparison of tirzepatide vs semaglutide side effects
  • Express 24-hour approval option available
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Treatment from £144.99

Takes under 2 minutes · 100% online
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Height 175 cm
Weight 82 kg
Your BMI
26.8
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Free · BMI thresholds shown are illustrative. Final eligibility is confirmed by a UK prescriber during your free consultation.
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Which route suits you

Two clinically backed paths to results

A weekly GLP-1 injection or a daily capsule — each fully overseen by our UK pharmacy team, with no obligation to continue.

Treatment
Avg. weight loss
05%10%15%20%25%
Availability
Injection
Weekly pen · GLP-1
Avg. weight loss
~20%up to
Availability Available now
Pill NEW
Daily tablet · Oral GLP-1
Avg. weight loss
~17%up to
Availability Explore now
Live Pricing

Our Range

Prices update live and may change. The live table below always takes precedence.
All treatment is subject to a prescriber consultation and clinical approval.

Order Your Single Mounjaro Pen - All Doses Available

Single Pen Mounjaro Pricing - Choose Your Dose

Compare tirzepatide vs semaglutide side effects while selecting your single pen dose. All doses available individually with first-order discounts:

2.5mg Single Pen: £129.99 (first order) / £144.99 (returning) / £169.99 (standard)
5mg Single Pen: £159.99 (first order) / £174.99 (returning) / £199.99 (standard)
7.5mg Single Pen: £209.99 (first order) / £224.99 (returning) / £249.99 (standard)

Higher doses available: 10mg, 12.5mg, and 15mg single pens. Use code FIRST40 for maximum savings on your first order.

Tirzepatide Side Effects vs Semaglutide - Key Differences

When comparing tirzepatide vs semaglutide side effects, Mounjaro (tirzepatide) may cause similar gastrointestinal effects but with potentially different frequency and severity. Common tirzepatide side effects may include nausea, vomiting, diarrhoea, and decreased appetite - similar to semaglutide but affecting the dual GIP and GLP-1 receptors.

Your single pen prescription includes comprehensive side effect monitoring. Clinical assessment evaluates your suitability based on medical history and potential interactions. Order your single pen with confidence knowing professional oversight is included.

Why Choose Single Pen Orders

Single pen purchases offer flexibility for dose titration and trial periods. Start with 2.5mg single pen to assess tolerance before committing to larger quantities. Perfect for first-time users comparing tirzepatide vs semaglutide side effects from personal experience.

Each single pen contains four doses for one month's treatment. Clinical guidance included with every order helps manage any side effects that may occur.

GPhC Pharmacy Supply - Prescription-Only Medicine

Your single Mounjaro pen requires clinical assessment before dispatch. Our GPhC-registered pharmacy ensures legitimate supply with proper medical oversight. MHRA additional monitoring (Black Triangle ▼) provides enhanced safety surveillance.

Standard approval takes 3 working days, or upgrade to express 24-hour service. Your single pen ships discreetly with full injection guidance and side effect management advice.

Order your single Mounjaro pen today. Compare tirzepatide vs semaglutide side effects with professional support. Treatment must be used alongside reduced-calorie diet and increased physical activity for optimal results.

NEW

GLP-1, now in adaily pill

Meet the daily GLP-1 tablet — needle-free, taken on your schedule, and prescribed by UK pharmacists. Designed for flexibility.

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Track your progress

Your journey,in your pocket

Track Now

Meet the newGLP-1 pill

  • Once-daily tablet · room-temp storage
  • No needles, no fridge
  • Up to ~15–17% in trials
How treatment works

How GLP-1 treatments help

Reduces appetite

Helps you feel fuller, sooner — so portions naturally shrink.

Curbs cravings

Quietens food noise so snacking and cravings ease off.

Slows digestion

Food stays in your stomach longer, steadying hunger between meals.

Steady blood sugar

Supports more stable glucose levels through the day.

Is GLP-1 treatment right for you?

GLP-1 medicines are powerful and prescription-only for good reason. They suit many people very well — and they aren’t appropriate for everyone. Here’s a clear, honest picture before you decide.

You may be suitable

Criteria met
BMI of 30 or higher
BMI of 27+ with weight-related conditions
Struggled to lose weight with diet alone
Ready to pair with lifestyle changes

Speak to us first

Potential risk
Pregnant, trying to conceive, or breastfeeding
History of certain thyroid cancers
Certain pancreatic or digestive conditions
Under the age of 18

Ready to start your journey?

Track your progress

Your journey, in your pocket

Track your journey

Log every dose and watch your progress build.

Download now Free to download — takes a minute to set up. App Store and Google Play

AI Meal Tracking. Built for GLP-1 Appetites.

Point your camera at any meal and in 4–6 seconds it logs the calories, macros, weight, and fullness it expects.

Never miss a dose

A daily nudge keeps you on track.

How it works

Achieve your goals in just a few simple steps.

Step 1

Start Free Consultation

Select safe UK treatments. Quick answers.

Step 2

Review By Our Clinical Team

Our expert team will use your consultation as the basis of our recommendation and communicate with you.

Step 3

Get it delivered fast

We’ll deliver direct to you, as quickly as tomorrow.

Trusted by thousands

Real people, real change

Hannah M.
Lost 2 st 4 lb in a year

“The cravings that used to run my evenings just quietened down. Having a pharmacist to message made it feel safe.”

David O.
Lost 3 st in a year

“Discreet, simple and genuinely supportive. The dose steps were explained clearly every time.”

Priya S.
Lost 1 st 9 lb in a year

“I finally feel like food isn’t the loudest thing in my head. The delivery was always discreet and on time.”

Frequently asked questions