Pulsatilla: like aconite.
Quinine.
Rue: in atonic conditions of ovaries or of uterus. Plethora contra-indicates.
Salines: in constipation in plethoric cases.
Sanguinaria: like rue.
Santonin: in two doses of 10 grn. each, one or two days before the expected period.
Savine: like rue.
Senega: a saturated decoction in large doses, a pint daily, about two weeks before period.
Serpentaria: in anemia.
Silver Nitrate: locally, to os uteri at period.