2. Eucommia ulmoides has the functions of nourishing liver and kidney, warming uterus and preventing miscarriage, lowering blood pressure, relaxing bowels and diuresis. It also improves sexual function and has a good effect on impotence, nocturnal emission and kidney-qi deficiency. Morinda officinalis can tonify kidney-yang, nourish essence and blood, strengthen bones and muscles, dispel wind and remove dampness. Clinically, it is often used to treat impotence, infertility, irregular menstruation, abdominal cold pain and other symptoms caused by kidney yang deficiency, and can also treat weakness of bones and muscles, soreness of waist and knees, or walking difficulties caused by chronic rheumatism.