It takes about a week to get results, but it may take different time for different people to get results. It is mainly used to treat loss of appetite, kidney deficiency and Yang weakness, night dreams, memory loss, back pain and leg weakness. Generally speaking, a course of treatment is around 15-30 days, and most patients can see good results after taking 1-2 courses of treatment. For people with Yang deficiency, it is recommended to take at least three courses to warm up Yang energy. If the Yang deficiency is relieved, long-term use is not recommended. In addition, if the effect is not obvious, it is recommended to consult a doctor in time to determine whether it is necessary to stop or change the medication, do not stop or increase the dosage on your own. Patients may experience adverse reactions such as nausea and vomiting when taking Kamehameha, so it is recommended to consult a Chinese medicine physician in detail before taking it, or follow the drug instructions to avoid damage to health.