Liuwei Dihuang Wan is a traditional Chinese medicine used to nourish kidney yin. If symptoms such as premature ejaculation are accompanied by soreness in the lower back and knees, dizziness, tinnitus, night sweats, nocturnal emission, and a sensation of heat in the palms and soles, it is likely due to kidney yin deficiency, and taking Liuwei Dihuang Wan can be effective. However, if the condition is due to kidney yang deficiency, this medicine might not be effective or the results may not be as good.