Answer
Progesterone opposes oestrogen-driven growth of the womb lining, reducing the excess risk of endometrial overgrowth associated with oestrogen alone.
Sources for this answer
- Bijuve 1mg/100mg Capsules, soft — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.