Lotus Seed (Lian Zi). This herb is both astringent and tonic and therefore is very useful for chronic diarrhea due to spleen deficiency. It is also useful for kidney deficiency with such symptoms as premature ejaculation and vaginal discharge. It can be used as a tonic for the heart and to calm the spirit in such conditions as insomnia, palpitations, and anxiety.Contraindications: Lotus seeds SHOULD NOT BE USED by those with constipation or abdominal distension. Dose: 6-18 grams