How to Get Weight Loss Injections Online in the UK (2026 Guide)
Weight loss injections have become one of the most in-demand prescription treatments in the UK over the past two years. With clinical trials showing results that were previously only achievable through surgery, it’s no surprise that more people are looking into how to access them. This guide explains exactly how to get weight loss injections online in the UK — safely, legally and without a GP appointment.
Which Weight Loss Injections Are Available in the UK?
There are currently two MHRA-approved injectable weight loss treatments available in the UK:
1. Mounjaro (Tirzepatide) — the most effective option available, with clinical trials showing an average weight loss of 20–22% of body weight. MHRA-approved in 2023. Available from £129/month at MedExpress.
2. Wegovy (Semaglutide 2.4mg) — the original weight loss injection, showing an average of ~15% body weight loss in clinical trials. Well-established with a strong safety profile. Available from £99/month at MedExpress.
Both are once-weekly injections administered using a pre-filled auto-injector pen.
Can You Get Weight Loss Injections Online in the UK?
Yes — it is completely legal to obtain weight loss injections online in the UK through a registered, regulated online pharmacy. You do not need to visit a GP in person, provided you complete a thorough online clinical consultation with a qualified prescriber.
The key requirement is that a licensed prescriber reviews your health information and issues a prescription before the medication is dispensed. Any website offering weight loss injections without a consultation or prescription is operating illegally and should be avoided.
How Does the Online Process Work?
At MedExpress, the process is simple:
Step 1 — Complete a free online consultation Answer questions about your health history, current medications, BMI and weight loss goals. This takes around 5–10 minutes.
Step 2 — Clinical review Your responses are reviewed by a member of our UK-based clinical team. If you meet the eligibility criteria, a prescription is issued.
Step 3 — Discreet delivery Your medication is dispensed from our UK pharmacy and delivered to your door in plain, unbranded packaging — typically within 1–3 working days.
Who is Eligible for Weight Loss Injections?
Both Mounjaro and Wegovy are available to adults who meet one of the following criteria:
- BMI of 30 or above
- BMI of 27 or above with at least one weight-related health condition (such as high blood pressure, type 2 diabetes, high cholesterol or sleep apnoea)
You must also be committed to making dietary and lifestyle changes alongside the medication, as both treatments work best as part of a broader weight management approach.
What Should You Expect When Starting?
Most people notice a reduction in appetite within the first week of treatment. Weight loss typically becomes noticeable within the first month, with the most significant results building over 3–18 months as the dose increases.
Side effects are common in the early weeks — particularly nausea — but usually improve as your body adjusts to the medication.
How to Choose Between Mounjaro and Wegovy
- For maximum weight loss results: Choose Mounjaro — it consistently outperforms Wegovy in clinical trials
- For a lower starting cost: Choose Wegovy — it starts at £99/month vs £129/month for Mounjaro
- Not sure? Complete a free consultation and our clinical team will recommend the most suitable option for your health profile
Get Started Today
MedExpress is a UK-registered online pharmacy offering both Mounjaro and Wegovy with a private prescription following a free online consultation.
👉 Buy Mounjaro UK — from £129 👉 Buy Wegovy UK — from £99
