# Global Mounjaro misuse and regulation concerns

> Live situation record from CLSTR: https://clstr.news/situations/global-mounjaro-misuse-and-regulation-concerns
> Updated: 2026-09-27T21:24:05.000Z. Sources: 8. Developments: 2.

Global concerns have emerged regarding the misuse and regulation of the diabetes and obesity medication Mounjaro. In Asia, South Korean authorities have reported a surge in counterfeit shipments, particularly from India, which contain impurities and inconsistent active ingredients. In Japan, reports indicate that individuals are obtaining the drug via social media and online clinics for cosmetic purposes without medical supervision, leading to side effects such as extreme fatigue and rapid weight loss.

In Europe, the focus has shifted toward prescription oversight. In Portugal, the Medical Association (Ordem dos Médicos) is investigating whether the medication is being prescribed correctly following reports of massive commercial activity. Sales volumes in Portugal have reached significant levels, including over one million euros in a single day.

## Timeline

### 2026-09-27: Medical Association investigates Mounjaro prescription practices in Portugal

The Portuguese Medical Association is investigating the prescription practices of the weight-loss drug Mounjaro following a surge in high-volume sales in the country.

2 sources. https://clstr.news/cluster/medical-association-investigates-mounjaro-prescription-practices-in-portugal

### 2026-09-17: Mounjaro misuse and counterfeit smuggling spark global health concerns

Health experts and authorities warn of rising risks associated with Mounjaro misuse, including counterfeit smuggling in South Korea and dangerous self-medication for weight loss in Japan and Europe.

6 sources. https://clstr.news/cluster/mounjaro-weight-loss-drug-expert-warns-of-health-risks

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Cite as: Global Mounjaro misuse and regulation concerns. CLSTR, https://clstr.news/situations/global-mounjaro-misuse-and-regulation-concerns