2, role: for impotence and spermatorrhea, muscle and bone impotence, rheumatism and paralysis, limbs, paralysis, paraplegia, deficiency and cold infertility, frequent urination and loss of chu, kidney deficiency and cough.

3, contraindications: yin deficiency and phase fire easy to move the crowd avoid serving Horny Goat Weed; false Yang easy to lift, more than dreaming people avoid serving Horny Goat Weed; red stool and dry mouth, strong Yang not impotence crowd avoid serving Horny Goat Weed.