Weight loss injectable treatments such as Mounjaro® and Wegovy® are not suitable for everyone. Eligibility is determined by clinical guidelines, medical safety, and strict prescribing regulations.
Overview
Use this guide to understand:
Age and BMI eligibility requirements.
Medical situations that prevent safe prescribing.
Why clinical review is required before treatment approval.
Who Is Not Eligible for Weight Loss Injectables?
A UK-registered prescriber may determine that weight loss injections are not appropriate if any of the following apply:
Age: You are under the age of 18.
BMI: Your Body Mass Index (BMI) falls below our clinical treatment thresholds.
Pregnancy/Nursing: You are pregnant, planning to become pregnant, or breastfeeding.
Allergies: A history of a serious allergic reaction to the medication or its ingredients.
Medical Conditions: Certain underlying conditions where GLP-1 medicines are not recommended.
Medication Interactions: Use of conflicting or unsafe medications.
Clinical Safety: Any situation where a prescriber deems treatment to be clinically unsafe.
Detailed Eligibility Thresholds
To be eligible for treatment with Wegovy® or Mounjaro®, you must be an adult (18+) and meet the following BMI criteria:
Standard BMI Thresholds
BMI of 30 or higher: The standard threshold for adults living with obesity.
BMI of 27 or higher: Eligible if you also have weight-related health issues, such as:
Prediabetes or Type 2 diabetes
High blood pressure (hypertension)
Sleep apnoea
High cholesterol
Heart disease
BMI between 25 and 30: Eligible for "off-label" prescribing in some cases. Our clinicians assess these on an individual basis to ensure safety.
Adjusted Thresholds for Specific Ethnic Backgrounds
Research indicates that individuals from certain ethnic backgrounds may face higher health risks at lower BMI levels. Consequently, our BMI thresholds are lowered by 2.5 for individuals from the following backgrounds:
Asian
Black African
African-Caribbean
Middle Eastern
For example, if you are from one of these backgrounds, the threshold for eligibility without additional health problems would be 27.5 instead of 30.
Why Eligibility Rules Exist
Restrictions on weight loss injectable prescribing are based on UK clinical safety guidance, regulatory standards, and evidence from medical research. These safeguards ensure that Mounjaro® and Wegovy® are only supplied when the benefits outweigh the risks.
What Happens if Treatment Is Not Suitable?
If a prescriber determines that a weight loss injectable is not appropriate, a prescription will not be issued. This decision is strictly based on clinical safety requirements to protect patients from potential harm.
Key Takeaway
Mounjaro® and Wegovy® are not suitable for everyone. Eligibility is strictly dependent on age, BMI, medical history, and safety considerations. A UK-registered prescriber must confirm your eligibility through a formal consultation before any treatment can be supplied.
If you still need help after reviewing the information above, additional assistance is available from the MedExpress team.