Wu Zi Derivatron Pill is a proprietary Chinese medicine used to treat diseases caused by deficiency of kidney essence, its adverse effects are not known and the effects of taking too much of it are not clear at present. Wu Zi Derivative Pill is composed of Fructus Lycii, Semen Cuscutae, Fructus Raspberries, Fructus Schisandrae, Psyllium Hirsutum, and Psyllium Hirsutum. It is used for impotence and infertility, seminal emission and premature ejaculation, lumbago, and residual leaking after urination caused by kidney deficiency and essence loss. The adverse effects and contraindications of Wu Zi Derivatron Pill are not known at present. During treatment with the drug, abstinence from sexual intercourse is advisable. Patients with cold and fever should not use this medicine. If the symptoms are not relieved after taking the medicine for 4 weeks, patients should go to the hospital. Use the drug under the guidance of a doctor.