Weight Loss Injections

Mounjaro is a brand of Tirzepatide- a weight loss medicine that makes you feel fuller for longer and therefore less hungry. It comes in the form of an injection which you inject yourself, once a week.

NHS Rollout 23rd June 2025

• Mounjaro is being gradually rolled out in GP practices as part of wider support for people living with obesity
• It is only available to a very limited number of patients in the first year, based on strict NHS criteria
• Eligibility includes a BMI of 40 or more and at least four serious weight-related health conditions:

1. Dyslipidaemia (abnormal fat levels in the blood)
2. Hypertension (high blood pressure)
3. Obstructive sleep apnoea (when your breathing stops and starts while you sleep)
4. Cardiovascular disease (heart and blood vessel disease)
5. Type 2 diabetes mellitus

• Patients must also take part in a structured support programme (wraparound care) including healthy eating and physical activity
• Please do not contact your GP practice – eligible patients will be contacted directly by their practice or the NHS in due course

More information to follow.

NHS Guidance

Important Information for Patients taking Mounjaro Privately and also taking Contraceptive Medication

• Mounjaro slows gastric emptying, which can interfere with how well the body absorbs oral birth control pills, potentially making them less effective.
• Since Mounjaro affects oral contraceptives, using barrier methods such as condoms, diaphragms, or cervical caps can help prevent unintended pregnancy.
• Contraceptive patches, injections, intrauterine systems (IUS) and implants remain effective because they do not rely on digestion for absorption.
• Healthcare professionals advise stopping Mounjaro at least one month before trying to conceive, and it is not recommended during pregnancy or breastfeeding.
• If you are using birth control and considering Mounjaro, it’s important to speak with your doctor.

For further information, please see below a Patient Information Leaflet by the Faculty of Sexual and Reproductive Healthcare (FSRH)

Patient-information-GLP-1-agonists-and-contraception