Question 1

How much does Mounjaro and Wegovy cost?

Accepted Answer

All prices are per pen containing 4 weekly doses and are all-inclusive — consultations, coaching and delivery included. Mounjaro (tirzepatide): 2.5mg £185 (starting dose, weeks 1-4), 5mg £199, 7.5mg £249, 10mg £279, 12.5mg £299, 15mg £315. Wegovy (semaglutide): 0.25mg £129 (starting dose, weeks 1-4), 0.5mg £144 (weeks 5-8), 1.0mg £159 (weeks 9-12), 1.7mg £189 (weeks 13-16), 2.4mg £219 (maintenance dose, week 17 onwards).

Question 2

Is Mounjaro or Wegovy better for weight loss?

Accepted Answer

Clinical trials (SURMOUNT vs STEP) suggest Mounjaro (tirzepatide) produces greater average weight loss — up to 22.5% of body weight — compared to Wegovy at approximately 15%. Mounjaro works on two hormonal pathways (GIP and GLP-1), while Wegovy works on one (GLP-1 only), which is thought to explain the difference in outcomes. The best medication depends on your individual health profile, medical history, and how your body responds.

Question 3

How much weight can I expect to lose?

Accepted Answer

In clinical trials, patients taking the highest dose of Mounjaro (15mg) lost an average of 22.5% of their body weight over 72 weeks — equivalent to around 23kg for someone weighing 100kg. For Wegovy, the average is approximately 15%. Results vary depending on starting weight, dose, diet, and lifestyle. Most patients begin to notice changes within the first 4-8 weeks. Significant, sustained weight loss typically occurs over 6-12 months with consistent use.

Question 4

Can I get weight loss injections if I have Type 2 diabetes?

Accepted Answer

Yes, in many cases you can. Type 2 diabetes is a weight-related condition that may allow for eligibility at a lower BMI threshold of 27 or above. Treatments like Mounjaro and Wegovy are effective at improving insulin sensitivity and blood glucose control while supporting weight loss. Please note: if you are currently prescribed specific diabetic medications, we may be unable to offer treatment, as your care is safest when managed by your dedicated diabetic team. Send us a message and we will review.

Question 5

What is tirzepatide and how does it work?

Accepted Answer

Tirzepatide is the active ingredient in Mounjaro. It is a dual-action injectable medication that mimics two gut hormones — GIP (glucose-dependent insulinotropic polypeptide) and GLP-1 (glucagon-like peptide-1). These hormones regulate appetite, slow gastric emptying, and improve insulin sensitivity. By activating both pathways simultaneously, tirzepatide reduces hunger, lowers calorie intake, and significantly reduces food noise — the constant preoccupation with food that many people with obesity experience. It is administered once weekly via a pre-filled pen and is approved in the UK for weight management in adults with obesity or overweight with weight-related health conditions.

Question 6

Is it safe to get Mounjaro prescribed online?

Accepted Answer

Yes — provided it is prescribed by a regulated clinical service following a proper medical assessment. Calleva Clinic is a trading name of Tadley Medical Partnership, rated Good by the Care Quality Commission (CQC). Our prescriptions are issued by qualified clinical prescribers after a thorough clinical review of your health history, BMI, and suitability. We do not issue automatic prescriptions. The risks arise when Mounjaro is purchased from unregulated sources or online pharmacies that dispense without adequate clinical oversight.

Question 7

How does Mounjaro compare to Ozempic?

Accepted Answer

Mounjaro (tirzepatide) and Ozempic (semaglutide) are both weekly injectable medications but are licensed for different purposes. Ozempic is licensed primarily for Type 2 diabetes in the UK and is not licensed for weight loss, though sometimes prescribed off-label. Wegovy is the weight loss-licensed version of semaglutide. Mounjaro acts on both GLP-1 and GIP receptors, and clinical evidence consistently shows it produces greater weight loss than semaglutide. Calleva Clinic prescribes Mounjaro and Wegovy — both licensed for weight management in the UK.

Question 8

Do I need a GP referral to access Mounjaro or Wegovy?

Accepted Answer

No referral is needed. You can book directly with Calleva Clinic without seeing your NHS GP first. Our service is entirely self-referral — simply book a free video consultation online and our clinical team will assess your eligibility. This means faster access to treatment without waiting for an NHS appointment or referral letter.

Question 9

What happens if I stop taking the injections?

Accepted Answer

Clinical evidence shows that most patients regain a significant portion of lost weight after stopping weight loss injections, as the appetite-suppressing effects wear off. This is a known limitation of GLP-1 and dual-agonist therapies and is not unique to Mounjaro or Wegovy. At Calleva Clinic, our clinicians work with you to build lasting habits during your treatment so you are best placed to maintain your results long term. Stopping should always be discussed with your prescribing clinician rather than done abruptly.

Question 10

Who is eligible for weight loss injections through Calleva Clinic?

Accepted Answer

These treatments may be suitable for adults aged 18 to 85 with a BMI of 30 or above (obesity), or a BMI of 27 or above (overweight) with a weight-related health condition such as pre-diabetes, high blood pressure, abnormal levels of fats in the blood, obstructive sleep apnoea, or a history of heart attack, stroke, or blood vessel problems.

Question 11

Who is eligible for weight loss injections on the NHS?

Accepted Answer

In 2026, NHS access via GPs is strictly prioritised. Cohort 1 requires a BMI of 40 or above and at least four qualifying conditions such as hypertension, heart disease, Type 2 diabetes, or sleep apnoea. Cohort 2, starting mid-2026, will expand eligibility to BMI 35 or above. The majority of patients who would benefit do not currently meet NHS thresholds. Private care at Calleva Clinic offers the same GP-led standard of care with no waiting list.

Question 12

What side effects might I experience?

Accepted Answer

The most common side effects of Mounjaro and Wegovy include nausea, diarrhoea, constipation, reduced appetite, and mild injection site reactions. These are typically most noticeable in the first few weeks and usually improve over time with dose titration. Serious side effects such as acute pancreatitis are rare but possible. Our clinicians discuss all potential side effects during your consultation and monitor you monthly throughout treatment.

Question 13

What makes Calleva Clinic different from an online pharmacy?

Accepted Answer

Calleva Clinic is a GP practice-led service, not an online pharmacy. You are assessed by qualified clinicians — not just asked to fill a basket. Prescriptions are issued after a thorough clinical review, never automatically. You receive ongoing support including dosage guidance, side effect monitoring, and follow-up care tailored to your medical history and long-term goals. We are a trading name of Tadley Medical Partnership, rated Good by the CQC.

Question 14

Does Calleva Clinic cover my area in England?

Accepted Answer

Yes. Based in Tadley, Hampshire (near Basingstoke), Calleva Clinic serves patients anywhere in England via video consultation and free temperature-controlled home delivery — from Cornwall to Northumberland. Whether you are in London, Manchester, Birmingham, Leeds, Bristol, Newcastle, or a rural area, access to GP-led Mounjaro and Wegovy prescriptions is the same. No in-person visit is required at any stage.

Question 15

Can I get Mounjaro or Wegovy prescribed online without visiting a clinic?

Accepted Answer

Yes. Calleva Clinic is a fully remote GP-led service. Your initial consultation is a video appointment with a qualified clinician who reviews your health history, BMI, and suitability. If treatment is appropriate, your prescription is issued and medication dispatched directly to your home anywhere in England. Ongoing monthly video consultations, dose reviews, and clinical support are all included. You never need to travel to a clinic or GP surgery.

Question 16

How quickly can I start Mounjaro or Wegovy treatment?

Accepted Answer

Most patients can start within a few days of booking. Book a free video consultation online, complete a health questionnaire, attend your video appointment, and — if suitable — your prescription is issued and medication dispatched. Delivery reaches patients across England typically within 1-2 working days. There is no waiting list and no NHS referral required.

Question 17

How does delivery work for weight loss injections?

Accepted Answer

Calleva Clinic provides free temperature-controlled delivery of Mounjaro and Wegovy to any address in England, Tuesday to Friday. Medication is dispatched in specialist cold-chain packaging to maintain efficacy and safety. You can also collect in person from our clinic in Tadley, Hampshire. Delivery is included in the price — no additional shipping charges.

The Health Benefits of Clinical Weight Management

Clinical Analysis: Tirzepatide (Mounjaro) vs Semaglutide (Wegovy)

What Our Service Includes

Patient Experiences: Clinical Weight Loss Success

Why Choose a GP-Led Clinic Over an Online Pharmacy

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