There are many proprietary Chinese medicines that nourish yin and blood (nourishing the blood in the body), such as Four Substances Combination, Donkey Gum Blood Replenishing Granules, Compound Colla Corii Asini Syrup, and so on, which are commonly found in clinical practice. 1. Four Substances Combination: composed of Angelica sinensis, Radix Paeoniae Alba, Rhizoma Ligustici Chuanxiong and Radix Rehmanniae Praeparata. It has the effect of nourishing blood and regulating menstruation (regulating menstrual irregularities caused by blood deficiency). It is used for dizziness and blurred vision caused by blood deficiency, yellowish complexion (yellowish color without luster), palpitation (rapid heartbeat, often accompanied by panic), shortness of breath, menstrual irregularities, etc. It is not recommended for those who are allergic to this medicine. It is forbidden for those who are allergic to this drug, and should not be taken when having a cold. 2. Donkey Colla Corii Asini Granules: composed of Colla Corii Asini, Radix Rehmanniae Praeparata, Rhizoma Atractylodis Macrocephalae, Radix Astragali and so on. It has the effect of tonifying blood, benefiting qi and regulating menstruation. It is used for the deficiency of qi and blood caused by prolonged illness, fatigue, yellow face, dizziness, menorrhagia, amenorrhea and so on. People with excessive menstruation should not take this medicine. 3. Compound Colla Corii Asini Syrup: composed of Colla Corii Asini, Radix Rehmanniae Praeparata and Radix et Rhizoma Ginseng. It has the effect of tonifying qi and nourishing blood. It is used for deficiency of qi and blood, palpitation and insomnia, loss of appetite, dizziness and anemia. Caution should be exercised where there is weakness of the spleen and stomach, vomiting and diarrhea, abdominal distension and loose stools (thin and unformed stools), and cough with excessive phlegm. It should be used under the guidance of a doctor to avoid aggravating the condition.