Gu Han Nutritive Essence Oral Liquid should not be taken by those who have external infection or solid heat within, those who are allergic to this product, or those with allergies. Gu Han Nutritive Essence Oral Liquid is a proprietary Chinese medicine composed of ginseng, roasted astragalus, golden cherry, wolfberry, chasteberry, cuscuta, etc. It has the effect of tonifying qi, nourishing the kidneys and benefiting the essence. It is used for the treatment of dizziness, palpitation, dizziness, tinnitus, forgetfulness, insomnia, and fatigue caused by deficiency of qi and yin in the kidney and insufficiency of kidney essence. It can also be used for the treatment of menopausal syndrome and post-disease body weakness in modern medicine. The adverse reactions and contraindications of this product are not clear at present. When using should pay attention to, avoid greasy food, external infection or solid heat within the fullness of contraindication, allergic to the product is prohibited, allergic to the body with caution. At the same time, it is not advisable to take this product to take quinquefolium, five spirit fat, saponaria or its preparations; should not drink tea and eat radish, so as not to affect the efficacy of the drug. In addition, this product should be taken before meals. If you need to use the drug, you should be guided by a traditional Chinese medicine practitioner under the guidance of the evidence, not blindly self-medication, so as to avoid delaying the condition of the drug is not the right evidence.