Hormonal medication is considered by specialists to be the most effective treatment for menopausal symptoms, but it does come with some risks, as is the case with nearly all medications. The risks are primarily relevant for women who start treatment later in menopause, use it for an extended period (typically longer than five years), and depend on factors such as the product, method of administration, dosage, and medical history. Oral hormone therapy with oestrogen slightly increases the risk of thrombosis, stroke, and gallbladder issues. When applied through the skin, the risk of thrombosis is lower, although gallbladder issues may still occur. If you have a uterus, progesterone/progestogen is always required alongside oestrogen to prevent uterine cancer. Combined hormone therapy carries a rare but increased risk of breast cancer when used long-term. Hormone therapy applied vaginally is minimally absorbed and does not show an increased risk of these complications.
At the same time, recent studies show that women who start hormone therapy early (before age 60) and use it for several years during menopause tend to live longer and healthier lives on average. Hormone therapy appears to reduce the risk of cardiovascular disease, dementia, osteoporosis, and overall mortality. These positive effects are most commonly observed in women who begin treatment around the onset of menopause.
Hormone therapy is not recommended for women with (a history of) breast cancer, hormonal cancers, stroke, thrombosis, liver disease, or abnormal vaginal bleeding.
Side effects of hormone replacement therapy
As hormone levels increase and/or the correct hormone dosage is determined, some side effects may occur during the first months of treatment: