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NHS Mounjaro Guide 2026: Eligibility, Criteria and Free Checker

If you are exploring what Mounjaro is and whether the NHS will prescribe it, this guide sets out the official 2026 eligibility criteria, gives you a free checker based on those rules, and compares the Mounjaro and Wegovy NHS pathways side by side.

Reviewed by Nick JohnsonLast reviewed 26 Aug 2026Free eligibility checkerIndependent, no paid placement

NHS Mounjaro Eligibility Checker 2026

The checker is completely free. Answer four quick questions for an instant assessment based directly on the official 2026 NHS Mounjaro eligibility guidelines. Nothing you enter is stored or sent anywhere; it is calculated in your browser.

Your calculated BMI: —

Not sure where your BMI sits? See our guide to BMI requirements for Mounjaro.

Mounjaro vs Wegovy on the NHS

The two medicines sit on different NHS pathways with different thresholds. This is the practical difference in 2026.

Clinical factorMounjaro (tirzepatide)Wegovy (semaglutide)
Current access routePrimary care (GP) or specialistTier 3 specialist weight management
Standard BMI threshold40 or above35 or above
Adjusted ethnicity BMI37.5 or above32.5 or above
Comorbidities required4 out of 5 specific conditionsAt least 1 weight-related condition

Official NHS Mounjaro Eligibility Criteria 2026

Cohort 1 pathway requirements

  • 1
    Patient is aged 18 or over.
  • 2
    BMI of 40 kg/m² or above (or 37.5 kg/m² or above for South Asian, Chinese, other Asian, Middle Eastern, Black African or African-Caribbean backgrounds).
  • 3
    Diagnosed with at least 4 out of the following 5 conditions: type 2 diabetes, hypertension, dyslipidaemia, cardiovascular disease, obstructive sleep apnoea.4 out of the following 5 conditions
  • 4
    Treatment must be actively supported by a reduced-calorie diet, increased physical activity, and formal behavioural support.

How the NHS Mounjaro Prescription Process Works

  1. 01
    Consult your GP.

    Discuss your weight, lifestyle and any related health conditions. Your GP will officially calculate your BMI and review your medical history against the NHS Mounjaro eligibility rules.

  2. 02
    Specialist service referral.

    Depending on your region, you may need a formal assessment by a Tier 3 weight management service before an NHS prescription can be issued.

  3. 03
    Commence treatment.

    If approved, you receive weekly Mounjaro injections alongside ongoing lifestyle support including diet and exercise coaching.

  4. 04
    Clinical reviews.

    After an initial 6 months your progress is reviewed. NHS treatment continues only if you have lost at least 5 percent of your starting weight.

Do Not Meet the NHS Criteria?

Private Mounjaro and Wegovy prescriptions have much lower clinical thresholds: typically BMI 30 or above, or BMI 27 or above with a weight-related condition. Many providers hide delivery fees until checkout, so Monj tracks the genuinely lowest total prices, delivery included, ranked strictly by lowest patient price with no paid placement.

Compare private Mounjaro prices

Official NHS and NICE Resources

This guide is completely free to use and always will be.

If it has helped you understand your options, please consider a small donation to EveryDoctor to support frontline medical staff.

NHS Mounjaro FAQs

Can my GP prescribe Mounjaro directly?

Yes, in many regions. It depends on whether your local Integrated Care Board (ICB) has enabled primary care prescribing for Cohort 1 patients. In some areas your GP may still need to route your application through a formal referral to an NHS Tier 3 specialist weight management service first.

What if I do not meet the strict NHS criteria?

You may still be referred to a specialist weight management service to evaluate your eligibility for Wegovy. Future treatment phases (such as Cohort 2) are also expected to open around June 2026, introducing slightly lower BMI thresholds for patients who meet the necessary comorbidity requirements.

Is Mounjaro only for people with diabetes?

No. Tirzepatide was initially developed for diabetes but has since been fully approved by NICE for weight management. In the NHS rollout, type 2 diabetes is merely one of five possible qualifying conditions. You do not need diabetes to be eligible; you need any four of the five specified conditions.

Do I still need to diet and exercise?

Yes, lifestyle changes are essential. Clinical data consistently shows Mounjaro works best alongside a reduced-calorie diet and increased activity, and the NHS explicitly requires participation in lifestyle and behavioural support as a condition of receiving and continuing the prescription.

NHS Mounjaro Guide 2026 eligibility checker and Wegovy comparison
Sources: NHS England weight management injections guidance; NICE TA1026 (tirzepatide) and TA875 (semaglutide). This guide is general information, not medical advice, and is not a substitute for consulting your GP or an NHS weight management service. Clinical criteria and local availability change; checker results are indicative only. Monj is an independent price comparison index and does not sell, prescribe or dispense medicines. Related reading: how to get Mounjaro on the NHS: the full guide.

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