Classical prescription to tonify kidney yang and qi, and astringe seminal discharge. Specific for the male sexual dysfunctions of nocturnal emission and premature ejaculation due to weak kidneys. (Less useful in spermatorrhea due to liver fire). Useful in ejaculation control (Daoist sexual practices). Also useful as an astringent for leukorrhea (vaginal discharge), excessive sweating, and diarrhea.