Patients whose menstruation lasts only three days due to weakness of qi and blood can take Gui Spleen Tang. This formula has the effects of tonifying blood and benefiting qi, and can treat conditions such as deficiency of qi and blood in the heart and spleen, and spleen’s inability to regulate blood (the spleen is unable to regulate the blood), etc. If it is not an indication, then Gui Spleen Tang is not suitable for you to take it. It is composed of Angelica sinensis, Astragalus membranaceus, Rhizoma Atractylodis Macrocephalae, Poria cocos, Longan meat, Jujube nut, Radix et Rhizoma Ginseng, Radix et Rhizoma Mucilaginae, etc. It has the effects of benefiting qi and tonifying blood (replenishing the body’s qi and blood), strengthening the spleen and nourishing the heart (strengthening the spleen and stomach, tonifying and nourishing the heart and spirit). This formula is effective in treating insomnia and forgetfulness caused by deficiency of heart, spleen, qi and blood, night sweating (abnormal sweating after going to sleep, but sweating stops after waking up), body fatigue, yellowish color (yellowish color without luster), palpitation (rapid heartbeat, often accompanied by panic), blood in stool, menstrual bleeding, menstruation in excess of the normal volume, heavy menstruation and pale menstruation, and metrorrhagia (excessive menstruation or dripping menstruation) in women. Adverse effects and contraindications of this formula are not known. Women with only three days of menstruation who are caused by weak qi and blood can take Gui Shen Tang under the guidance of a doctor.