The dosage of Zuo Gui Wan should depend on the specifications, some dosage forms weigh 1 gram per 10 capsules, 90 capsules at a time is the normal dosage of the drug, read the instructions carefully and follow the doctor’s instructions for medication, there is usually no harm. Because of the small size of the pill, it can be taken in batches with warm water to avoid choking. Zuo Gui Wan is a proprietary Chinese medicine preparation whose main ingredients are Radix Rehmanniae Praeparata, Semen Cuscutae, Radix Achyranthis Bidentatae, and Colla Corii Asiatica, which has the effect of nourishing the kidney and tonifying the yin and is used for the insufficiency of true yin, lumbar and knee soreness and tenderness (a feeling of weakness and tenderness of the waist and knees), night sweating (abnormal sweating after going to sleep, and stopping of sweating after waking up), and nervous fatigue (lack of mental clarity) with dryness of the mouth. Some dosage forms weigh 1 gram per 10 capsules, and the dosage is as follows: take orally, 9 grams (i.e., 90 capsules) at a time, twice a day. Adverse effects of this product is not clear, pregnant women should not take, children are prohibited. Avoid greasy food during the medication, cold patients should not be taken, taking medication within two weeks of the symptoms did not improve, should seek medical attention in a timely manner. It is recommended that patients standardize the medication or treatment under the guidance of a physician, and should not take medication without authorization to avoid delaying the condition.