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Bupropion + Naltrexon

Mysimba

Mysimba is a tablet containing bupropion and naltrexone that acts on the reward and satiety system in the brain. It is not a GLP-1 and not an injection — an alternative for those who don't want injections. Prescription only.

What is Mysimba?

  • Active substances: bupropion + naltrexone
  • Administration: tablet, with a dose build-up schedule
  • Prescription only: yes

How does Mysimba work?

The combination affects brain areas that regulate hunger and reward, reducing appetite and cravings.

What are the side effects?

  • Nausea, constipation, headache, insomnia

Not suitable for people with certain conditions; a doctor will assess this.

Frequently asked questions

Is Mysimba a GLP-1 medicine?
No. Mysimba (bupropion + naltrexone) acts centrally in the brain and is not a GLP-1. It is a tablet, not an injection.

Official sources on this topic

Independent, authoritative information from official bodies:

Mysimba is prescription-only. Whether it is suitable and safe for you is always assessed by a doctor. Not medical advice.