Uncommon side effects • Allergic reaction (hypersensitivity) • Depression or worsening of existing depression • Nervousness • Dizziness • Migraine (see “Stop taking Activelle” in section 2) • Breast pain or breast discomfort • Swelling or discomfort of the abdomen (stomach) • Weight gain caused by fluid retention • Swelling of arms and legs (peripheral oedema) • Leg cramps