Buy Mounjaro online in the UK — safely, and at the right price

Prices last checked 4 July 2026 · pen = 4 weekly doses

The honest small print: all providers listed are GPhC-registered pharmacies or CQC-regulated clinics. Prices move often — treat this table as price information, not an offer of supply, and confirm the current figure on the provider's own site before you order.

All figures are the providers' listed four-week pen prices on 4 July 2026, before any first-order codes. Full dose-by-dose breakdown: what each pen really costs.

1. 5 minutes

   Run the eligibility check

   18+, BMI 30+ (or 27+ with a weight-related condition), not pregnant or planning pregnancy. If that's not you, stop here — no regulated provider will prescribe, and anyone who will is a seller to avoid.

2. 10 minutes

   Pick your provider from the table

   Compare on the ongoing 2.5 mg price, then sanity-check the doses you'll reach later. Note the discount code before checkout — most only apply to your first order.

3. 15–20 minutes

   Complete the online consultation

   A medical questionnaire covering weight history, conditions and medicines, plus photo or video verification of your ID and weight. Answer honestly — it's what keeps the prescription safe and valid.

4. A few hours to 2 days

   Prescriber review

   A UK prescriber checks your answers and may message you follow-up questions. They can decline — with The Weight Clinic you're refunded if that happens.

5. Usually next day

   Cold-chain delivery arrives

   Your pen ships in temperature-controlled packaging. Put it in the fridge (2–8°C) as soon as it lands, and check needles were included — they are with our pick.

6. Week 1 onwards

   First injection, then a weekly rhythm

   One injection under the skin of the tummy or thigh, same day each week, rotating sites. Reorder around week 3 so you never run a gap. Full walkthrough: how to start Mounjaro in the UK.

Mounjaro is the brand name for tirzepatide, a once-weekly injection that mimics two gut hormones (GIP and GLP-1) to blunt appetite and quieten "food noise". It's the only dual-hormone option in the UK and the one linked to the largest average weight loss: around 21–22% of body weight over 72 weeks at the higher doses in the SURMOUNT-1 trial. It is MHRA-licensed, NICE-recommended (TA1026), and available privately for adults meeting the BMI thresholds — with a phased NHS rollout that still leaves most people buying privately. It is not a shortcut and not for everyone: nausea, diarrhoea and constipation are common early on, and it must not be used in pregnancy.