Women who have heavy menstrual flow during menstruation or are allergic to the ingredients of Yiqi Nourishing Blood Oral Liquid should not normally drink Yiqi Nourishing Blood Oral Liquid. Yiqi Nourishing Blood Oral Liquid is composed of ginseng, Radix Rehmanniae Praeparata, Radix Angelicae Sinensis, Radix Astragali, Pericarpium Citri Reticulatae, Radix Rehmanniae Praeparatae, Rhizoma Ophiopogonis, Rhizoma Ophiopogonis, Deer Antler and Fructus Schisandrae Chinensis, and it has the efficacy of benefiting the qi and nourishing the blood (replenishing qi and blood within the body), and can be used to treat the conditions of weakness, pallor, palpitations (accelerated heartbeat, often accompanied with heart palpitations), and shortness of breath caused by qi and blood insufficiency. As for the ingredients contained in Yiqi Nourishing Blood Oral Liquid, such as Angelica sinensis, if a woman’s menstrual flow is too heavy when she has her period, she usually cannot drink Yiqi Nourishing Blood Oral Liquid, so as not to aggravate the symptoms of heavy and prolonged menstruation. If a woman is allergic to the ingredients of Yiqi Nourishing Blood Oral Liquid, she should not drink Yiqi Nourishing Blood Oral Liquid during menstruation to avoid allergic reactions such as difficulty in breathing, itching of the skin, and skin rashes. In addition, patients with fever, upper respiratory tract infection should avoid taking Yiqi Nourishing Blood Oral Liquid. Patients with deficiency cold diarrhea (frequent stools, thin stools) should be cautious of using Yiqi Nourishing Blood Oral Liquid. Menstruating women should use the drug under the guidance of a doctor.