Weight loss · Mounjaro

Mounjaro

Tirzepatide · once-weekly injection

A once-weekly injection that works on two appetite hormones at once. The most effective weight-loss treatment we prescribe, with the strongest clinical evidence behind it.

Choose your strength

Everyone starts at 2.5mg. Your pharmacist confirms your dose after your consultation.

How many?

1 pen

£199.00

£199.00 each

2 pensSave 5%

£378.10

£189.05 each

After first review

3 pensSave 10%

£537.30

£179.10 each

After first review

1 pen · Starting dose 2.5mg

£199.00

One-off. Multi-packs unlock once your dose is stable.

Multi-packs are only offered at a dose your pharmacist has confirmed as your maintenance dose — you can't buy three months of a strength you're about to move up from.

  • Prescribed by a UK-registered pharmacist
  • Tracked, plain packaging · delivered in 2–3 working days
  • One-off pricing — no subscription, pause or stop any time
Mounjaro® Injectable Pen
Active ingredient
Tirzepatide
How you take it
One injection a week, any time of day
Trial result
Up to 21% body weight over 72 weeks
Review cadence
Every 4 weeks with your pharmacist

How it works

Two hormones, one signal.

Tirzepatide mimics GIP and GLP-1 — two gut hormones that tell your brain you're full and slow how quickly your stomach empties.

01

Appetite settles

You feel full sooner and stay full longer. Cravings quieten. Most people simply eat less without forcing it.

02

Blood sugar steadies

Tirzepatide improves how your body handles insulin, which reduces the energy dips that drive snacking.

03

Weight comes down

With the dose stepped up gradually over months, average loss in trials was around a fifth of body weight.

Strengths

Six doses, stepped up slowly.

Everyone starts at 2.5mg for four weeks. Your pharmacist then moves you up one step at a time, only when you're ready.

  • 2.5mg
  • 5mg
  • 7.5mg
  • 10mg
  • 12.5mg
  • 15mg

Your dose is set by your prescriber, not chosen at checkout. Moving up too fast is the main cause of side effects, so we go at your pace — and you can stay on a lower maintenance dose if it's working.

Who it's for

Is Mounjaro right for you?

Mounjaro is prescribed for adults who meet UK licensing criteria for weight management.

Likely suitable if

  • You're 18 or over
  • Your BMI is 30 or above, or 27 or above with a weight-related condition such as high blood pressure, type 2 diabetes or sleep apnoea
  • You've tried diet and exercise changes without lasting results
  • You're able to inject yourself once a week (we'll show you how)

Not suitable if

  • You're pregnant, breastfeeding or planning pregnancy
  • You have a personal or family history of medullary thyroid cancer or MEN2
  • You've had pancreatitis
  • You have type 1 diabetes or severe gastrointestinal disease
  • You're taking another GLP-1 medicine

This is a guide, not a decision. A UK-registered prescriber reviews your full consultation and decides whether Mounjaro is clinically appropriate for you. Completing a consultation does not guarantee a prescription.

Safety

What to expect.

Most side effects are digestive, mild, and settle as your body adjusts — especially if the dose is stepped up slowly.

Common

  • Nausea
  • Diarrhoea or constipation
  • Reduced appetite
  • Indigestion or bloating
  • Tiredness in the first weeks
  • Injection-site redness

Less common

  • Vomiting
  • Dizziness
  • Hair thinning (temporary)
  • Low blood sugar if combined with certain diabetes medicines
  • Gallstones

Get help straight away

  • Severe, persistent stomach pain (possible pancreatitis)
  • Signs of an allergic reaction — swelling, breathing difficulty
  • Yellowing of skin or eyes
  • Sudden vision changes

In an emergency call 999. Report any suspected side effect to us and to the MHRA Yellow Card scheme at yellowcard.mhra.gov.uk. Always read the patient information leaflet supplied with your medicine.

What's included

Everything in the price.

Prescriber review

A UK-registered pharmacist reads your full consultation.

Your Mounjaro pen

Four weekly doses per pen, dispensed from our GPhC-registered pharmacy.

Needles and swabs

Everything you need to inject safely at home.

Injection walkthrough

Step-by-step guidance and a video, plus the pharmacy team on message.

4-weekly reviews

Dose adjustments, side-effect support and progress check-ins.

Discreet delivery

Plain, unbranded, temperature-controlled packaging within 2–3 working days.

Good to know

Common questions.

How quickly will I see results?

Most people notice appetite changes within the first two weeks. Meaningful weight loss builds over months — trials measured results at 72 weeks, and consistency matters more than speed.

Do I have to stay on it forever?

No. Mounjaro works while you take it. If you stop, appetite tends to return, which is why we plan maintenance and lifestyle support with you rather than just stopping.

Can I drink alcohol?

In moderation, yes. Alcohol can worsen nausea and adds calories, so many people find they naturally drink less.

What if I miss a dose?

If it's within four days, take it as soon as you remember. If more than four days, skip it and take the next one on your usual day. Never double up.

Is it the same as Ozempic?

No. Ozempic is semaglutide (a single-hormone GLP-1). Mounjaro is tirzepatide, which acts on GIP as well. In head-to-head trials tirzepatide produced greater weight loss.

Start here

Start with a confidential consultation.

A short consultation, reviewed by a pharmacist who decides whether Mounjaro is right for you.