The Pharmacopoeia of China clearly points out that the dosage of Cordyceps sinensis should be 3-9g per day, and it is basically ineffective if it is less than 3g. This dosage needs about 10 Cordyceps sinensis of ordinary size. Because the absorption rate of Cordyceps sinensis is limited, it must be sufficient and taken for a long time (more than 3-6 months) to be effective.

Pharmaceutical experts believe that Cordyceps sinensis needs to be taken in sufficient amount for the treatment of tumors and other diseases, and the basic dosage of crude herb 10-30g (equivalent to more than 30 common Cordyceps sinensis) is needed every day, especially after tumor surgery and radiotherapy and chemotherapy, traditional Chinese medicine treatment should be adhered to for two to three years or even longer, so as to achieve the best consolidated treatment effect. For the treatment of other diseases, it is necessary to insist on taking it for at least two to three months after the disease is cured, so as to achieve the best effect.