A 59-year-old male with history of paranoid schizophrenia, neurotic depression, long-term constipation and insomnia complained abating sexual function started 1 year ago. No genitourinary abnormality was ascertained urologically. The Chinese herbal granule, Xiao Chai Hu Tang, Qi Ju Di Huang Wan modified and decoction of Xiao Chai Hu Tang, were taken primarily for one week, and replaced with Xiao Chai Hu Tang and Ba Wei Di Huang Wan modified for 3 weeks. Erectile dysfunction is improved, and the longest erection lasted 10 minutes. Other discomforts also subsided.