Medical weight loss — treatment explained and the medicines we prescribe
Find clear, factual information about our weight loss treatment and any prescription-only medicines that may be prescribed after a GP consultation.
Treatment pathway explained
What to expect at each stage
Every stage is documented and reviewed by a clinician before any prescription is issued or continued.
- 1Booking and health questionnairePatients choose the appointment that suits them and complete a short medical questionnaire as part of the online booking.
- 2Clinic visit and GP reviewAll appointments take place in person at a DocTap clinic, where the GP review is conducted. GP review appointments (15 or 30 minutes, available at all clinics) proceed directly to the GP. Blood tests + GP review appointments (20 or 30 minutes with the GP, available at lab clinics only) begin with a healthcare assistant, who takes vitals (height, weight, blood pressure, heart rate, waist circumference), blood samples with same-day results, and a brief lifestyle history. During the review, the GP assesses medical history and any blood-test results, confirms there are no contraindications, and, where treatment is clinically appropriate, discusses medication options, dose plan, cost, and administration before issuing a prescription. *Extended 30-minute appointments are recommended for patients with a more complex medical history or an additional health concern or condition.
- 3PrescriptionAn electronic prescription is issued. Medication is dispatched as a complete package — pre-filled injection pen, needles, alcohol swabs, sharps bin, and the patient information leaflet. *Injection training is provided: a demonstration pen in clinic for patients prescribed Mounjaro, or a video tutorial and official manufacturer link for patients prescribed Wegovy.
- 4First weekA check-in email is sent within the first week so patients can confirm they are settling in and report any side effects. If concerns arise, the GP may ask the patient to book a follow-up.
- 5Repeat prescriptions and dose adjustmentsRepeats are requested through the secure patient portal. Each request requires current weight (within 5 days), a side-effect review, pregnancy status where relevant, and confirmation of no recent hospitalisation, upcoming surgery, overlap with other weight loss medication, or significant health changes. A GP reviews every request and decides whether to continue, increase, reduce, or pause treatment. Doses are typically adjusted every 4 to 8 weeks if tolerated. Repeats are only issued when it is safe and clinically appropriate.
- 66-month reviewA formal GP review assesses progress, tolerance, adherence, and overall benefit. To continue treatment, patients should have lost at least 5% of their body weight, tolerated the medication, and taken it as prescribed.
Prescription-only medicines
The two medicines we prescribe
Your GP will discuss which medication is clinically appropriate (if either) for you based on your medical history, eligibility, and response. The two medicines summarised below may be prescribed at the GP's discretion.
Wegovy
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Active ingredient: Semaglutide
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How it's taken: Once-weekly self-administered injection (pre-filled pen), taken on the same day each week
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Dose range: 0.25 – 2.4 mg
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Monthly cost: from £98.98 (starting dose) to £198.97
Mounjaro
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Active ingredient: Tirzepatide
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How it's taken: Once-weekly self-administered injection (pre-filled pen), taken on the same day each week
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Dose range: 2.5 – 15 mg
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Monthly cost: from £168.97 (starting dose) to £298.97
Wegovy Prices
The table below shows the current monthly cost of each dose. The starting dose is the lowest, and doses are usually increased every 4 to 8 weeks if treatment is well tolerated and a GP considers it appropriate to continue. One month’s supply consists of four weekly injections, and the monthly cost may change as the dose is adjusted.
| Dose | Price | |
|---|---|---|
| 2.5mg | £98.98 | |
| 0.5mg | £118.97 | |
| 1mg | £148.97 | |
| 1.7mg | £178.97 | |
| 2.4mg | £198.97 |
Mounjaro Prices
The table below shows the current monthly cost of each dose. The starting dose is the lowest, and doses are usually increased every 4 to 8 weeks if treatment is well tolerated and a GP considers it appropriate to continue. One month’s supply consists of four weekly injections, and the monthly cost may change as the dose is adjusted.
| Dose | Price | |
|---|---|---|
| 2.5mg | £168.97 | |
| 5mg | £188.97 | |
| 7.5mg | £248.97 | |
| 10mg | £278.97 | |
| 12.5mg | £288.97 | |
| 15mg | £298.97 |
A DocTap GP assesses eligibility in line with UK clinical guidance, based on the criteria below and the patient's wider medical history.
- Age reguirements
18 years or older. Treatment is not prescribed under 18. Caution is applied for patients over 75.
- BMI thresholds
BMI of 30 kg/m² or more, or BMI of 27 kg/m² or more with at least one weight-related condition (for example hypertension, dyslipidaemia, obstructive sleep apnoea, prediabetes or Type 2 diabetes, PCOS, GORD, NAFLD, osteoarthritis). Ethnicity-adjusted thresholds apply for higher-risk groups.
- When medication cannot be prescribed
Treatment is not prescribed in any of the following: • Pregnancy, planning pregnancy, or breastfeeding • Type 1 diabetes • Current use of insulin or sulfonylureas • Active use of another weight loss medication • Known allergy to the medication or its components • End-stage renal disease or dialysis • Active eating disorder • Severe unstable psychiatric illness • Active inflammatory bowel disease • Severe gastrointestinal disease or gastroparesis • Personal or family history of medullary thyroid cancer (Mounjaro) • MEN2 syndrome (Mounjaro) • Severe unstable retinopathy (Wegovy)
Ready to speak to a GP?
If you feel fully informed, book a consultation to discuss suitability and next steps with one of our GPs.