NHS Worker Loses 5 Stone with Mounjaro After Health Scare

Siobhan Jackson, a 40-year-old NHS worker, achieved a remarkable weight loss of 5 stone after being prescribed the medication Mounjaro. This journey began in March 2025, following a health scare that pushed her blood pressure to dangerously high levels of 170/140. Realizing the need for change, Jackson initially lost 1 stone 7 pounds through healthier eating and exercise before her progress plateaued.

Having observed the positive effects of Mounjaro on her patients, Jackson decided to try the treatment herself. After acquiring her first injection from the pharmacy MedExpress for approximately £100, she noted a significant reduction in appetite. Although she continued to eat, her meals became less frequent and were consumed later in the day.

Through research on Facebook communities discussing microdosing, Jackson adjusted her dosage. She reduced her initial 7.5mg dose to 6.25mg, administering 3.125mg injections twice weekly. This change stabilized her appetite and allowed for more regular eating patterns. Over the course of 11 months, her weight decreased from 14 stone 1 pound to 9 stone 13 pounds, and her clothing size dropped from 18-20 to 10-12.

Reflecting on her experience, Jackson remarked, “I kept an eye for a while before I made the decision and then I just thought ‘I’m coming up to my 40th birthday, I’m going to order some and see how it goes.’” She emphasized the role of support groups in her decision to microdose, stating that without these communities, she might not have considered this approach.

Jackson expressed concerns about the regulatory differences between countries regarding the prescription of Mounjaro. She noted that while the UK has strict guidelines, the United States offers more flexibility in prescribing practices. This discrepancy can impact patients’ experiences and outcomes. “I learned quite quickly the way it is prescribed varies massively by country,” she said.

Despite her success, Jackson remains cautious about the future. She is aware of the potential financial implications of continuing her treatment, as the cost of Mounjaro has increased. Currently, she has enough medication to last until March 2027 but is already reducing her dose further. “I plan to probably maintain in 5mg,” she stated.

The Medicines and Healthcare products Regulatory Agency (MHRA) emphasizes the importance of following prescribed dosages for weight-loss medications. A spokesperson for the MHRA commented, “Patient safety is the MHRA’s top priority, and we closely monitor all medicines following authorisation to ensure their benefits continue to outweigh any risks.”

As Jackson navigates her journey, her story raises important questions about the accessibility and regulation of weight-loss treatments. While she has found success with Mounjaro, the broader implications of such medications on health and safety remain a critical topic in the ongoing conversation about weight management.