How long the Four Substances Cream should be taken to be effective depends on the patient’s own physique, condition and whether the medication is right for the patient, usually 1 to 3 months before it is effective. Four Substances Cream is mainly composed of Angelica sinensis, Rhizoma Ligustici Chuanxiong, Radix Paeoniae Alba and Radix Rehmanniae Praeparata. It has the efficacy of regulating menstruation and nourishing blood, and can be mainly used in the treatment of low menstrual flow, pale color, dizziness and fatigue caused by blood deficiency. The adverse effects of this drug are still unknown, for pregnant women, diabetic patients are prohibited. During the period of taking should also avoid eating cold, stimulating food, under the guidance of the doctor for standardized treatment. Usually take four things cream is to 1 ~ 3 months for a course of treatment, and can play a certain effect on patients with mild blood deficiency, but for serious blood deficiency patients should be appropriate to increase the time of taking, in order to play a better therapeutic effect. If there is no obvious improvement after taking Four Substances Cream for a period of time, you should also go to the hospital in time to see a doctor to make sure that you are on the right track, and listen to the doctor’s guidance and advice for further targeted treatment.