From the point of view of medicinal properties, there is no opposite relationship between eucommia and ginkgo biloba, but from the point of view of efficacy, the main effect of eucommia is to tonify the liver and kidney, strengthen the muscles and bones, and stabilize the fetus. Ginkgo biloba's main effect is to astringent lung, asthma, activate blood circulation, remove blood stasis, and relieve pain. If these two drugs are used alone, the synergistic effect is not significant and there is no need to take them together.