In the UK, NICE technology appraisals (TA875 for semaglutide and TA664 for liraglutide) restrict these medications to specialist weight management services with specific eligibility criteria and time-limited treatment courses
Theres not enough scientific evidence or research, though, to know about long-term side effects, since the studies have been small and short-term
Hayashi M, Kudo C, Hanamoto H, Maegawa H, Usami N, Niwa HJP, Behavior
Cikutovic M, Fuentes N, Bustos-Obregn E
Related reading on Faces Consent: Glutathione Injections: The UK Regulatory Reality covers a very similar regulatory grey area, and Exosomes: Whats Legal, Whats Hype, What Sells is useful background on assessing hype-driven, lightly regulated products more generally
The evidence to support these approaches is not robust