Why does spironolactone have side effect of post menopause bleeding?

Hormonal action. Spironolactone has a chemical structure similar to female sex hormones and can cause post menopausal bleeding in women and breast swelling in man, the latter of which is referred to as gynecomastia.

Related Questions

Why did spironolactone cause me to start post menopause bleeding?

Does not cause bleed. Spironolactone would not be a reason to have postmenopausal bleeding. Any postmenopausal bleeding could potentially be serious, so you should have a medical evaluation. That could possibly include an ultrasound or endometrial biopsy. Good luck! Read more...