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Mounjaro KwikPen

Prescription-only medicine · Once-weekly injection (pre-filled pen)

Mounjaro (tirzepatide)

A once-weekly prescription injection containing tirzepatide, which works on GIP and GLP-1 receptors to reduce appetite and help you feel fuller for longer.

  • Taken once weekly
  • One pen provides 4 weekly doses
  • Dose increased gradually when appropriate

Coming soon to our pharmacy

Supplied by our pharmacy only after three steps: an online assessment, independent verification of your height and weight, and a decision by a registered prescriber.

A prescription is not guaranteed. Decided by a registered prescriber.

  • UK-registered pharmacy
  • Personalised clinical assessment
  • Discreet, tracked delivery

What Mounjaro is

Mounjaro is a prescription-only medicine containing tirzepatide. It is licensed in the UK for weight management in adults, alongside a reduced-calorie diet and more physical activity. It is also licensed for type 2 diabetes.

Licensed by the MHRA for adults with a BMI of 30 or more. Also for a BMI of 27 or more with at least one weight-related health condition.

Who it may be suitable for

  • Adults who meet the licensed BMI criteria and have had their weight independently verified.
  • People who can commit to a reduced-calorie diet and more physical activity.
  • People whose prescriber has checked their medical history and current medicines.

How it is taken

Injected under the skin once a week. Treatment starts at 2.5 mg and is increased gradually by the prescriber, up to 15 mg. Never change the dose without advice.

Common and important side effects

  • Feeling sick, being sick, diarrhoea or constipation, especially when starting or increasing the dose.
  • Reduced appetite, indigestion, stomach pain, bloating.
  • Tiredness, headache, dizziness.
  • Less common but serious: inflammation of the pancreas, gallbladder problems, and dehydration that can harm the kidneys. Low blood sugar can happen with some diabetes medicines. Always read the patient information leaflet.

When it is not suitable

  • Pregnancy, breastfeeding or planning a pregnancy.
  • Under 18 years of age.
  • A history of pancreatitis, or a personal or family history of medullary thyroid cancer or multiple endocrine neoplasia type 2.
  • Taking another weight-loss medicine or certain diabetes medicines without prescriber review.

How supply works at our pharmacy

Supplied by our pharmacy only after three steps: an online assessment, independent verification of your height and weight, and a decision by a registered prescriber.

  1. 1

    Free online clinical assessment

    Complete a short assessment covering your health, medicines, weight history and treatment goals.

  2. 2

    A prescriber reviews your suitability

    A registered prescriber reviews your clinical information and decides whether treatment is appropriate for you.

  3. 3

    Free, discreet delivery

    Once your order is approved, we dispatch it the same day in plain, discreet packaging with free tracked delivery.

  4. 4

    Ongoing support throughout treatment

    Our pharmacy team is here to support you throughout your journey, with follow-up on your treatment and help whenever you have questions or concerns.

Questions people ask

Who can use the service?

Adults aged 18 to 74 with a body mass index (BMI) of 30 or more. Also adults with a BMI of 27 or more and a weight-related condition, such as type 2 diabetes, high blood pressure or sleep apnoea. Your prescriber makes the final decision.

Will I definitely get treatment?

No. A prescription is not guaranteed. The prescriber decides on clinical grounds and may suggest an alternative or refer you to your GP. The assessment is free either way.

Why do you check my height and weight?

Your height, weight and BMI help the prescriber decide whether weight loss treatment is appropriate for you. Verifying these details gives them a more accurate picture of your suitability before any medicine is prescribed.

How is it checked?

There are several ways we can verify your height and weight, depending on what’s most suitable for you. This may include a short video call, live video verification, a live selfie, or information from your GP or medical records.

Which treatment is best for me?

That depends on your health, your other medicines and any treatment you have had before. Your prescriber will explain the options. The comparison on this page shows the main differences.

This page gives factual information for people considering the service. A prescription is not guaranteed. A registered prescriber decides after your assessment and an independent check of your height and weight.