Special situations
Contraception and Mounjaro
Mounjaro can affect oral contraceptive absorption after dose increases — prescriber-led contraception advice is essential.
At a glance
- UK information only — not medical advice
- Prescription-only medicines
- Follow your prescriber, pharmacist or nurse
When to get help
- Seek urgent medical help for severe or persistent abdominal pain, especially if it spreads to your back or comes with vomiting.
- Speak to a clinician urgently if vomiting or diarrhoea is persistent or you cannot keep fluids down.
- Call NHS 111 or seek emergency care if you have signs of a serious allergic reaction, sudden vision changes on semaglutide, or any symptom your prescriber told you to treat as urgent.
Always follow your prescriber, pharmacist or nurse. SlimBee does not provide personal medical advice.
What to discuss with your clinician
Mounjaro can affect oral contraceptive absorption after dose increases — prescriber-led contraception advice is essential.
Bring a full medication list and pregnancy plans if relevant.
- Write down your current medicines and allergies before any consultation.
- Confirm who prescribes, who dispenses, and how aftercare works.
- Keep screenshots or emails of price, dose and delivery terms at checkout.
- Know how to contact the service if side effects or supply problems arise.
Medical disclaimer: SlimBee is an independent UK information website. We do not prescribe, dispense or sell medicines. Always follow your prescriber, pharmacist or nurse.