There are no studies showing that Epimedium can cause an increase in blood pressure. Epimedium is classified as a yang tonic under the category of deficiency tonic, warm in nature, pungent and sweet in taste. It belongs to the liver and kidney meridians, and has the effect of tonifying the kidney and yang, strengthening the tendons and bones, and dispelling wind-dampness, and is commonly used clinically in the treatment of impotence and spermatorrhea, rheumatism, numbness and pain in the joints, and numbness in the limbs. Caution is advised for those with yin deficiency and fire. Epimedium is used to treat impotence and spermatorrhea caused by kidney deficiency, and can be used with Cistanches, Morinda citrifolia, Cortex eucommiae and other medicines; when used to treat rheumatism, numbness and pain in joints and numbness in the limbs, it can be used with Wilsonia, Cynanchum and Rhizoma Ligustici. It is recommended to take the medicine under the guidance of a doctor for specific dosing.