Lock yang has the effect of tonifying the kidney and yang, benefiting the essence and blood, moistening the intestines and laxatives, etc., the effect of a few days is different from person to person. According to the Chinese Pharmacopoeia, lock yang is used as medicine for its dried fleshy stems, which are sweet and warm in nature. It is sweet in flavor and warm in temperature. It belongs to the liver, kidney and large intestine meridians. It has the effects of tonifying kidney yang, benefiting essence and blood, moistening the intestines and relaxing the bowels, etc. It is suitable for a series of conditions such as lumbar and knee impotence, impotence and slippery semen, and intestinal dryness and constipation caused by insufficiency of kidney yang (lack of yang in the kidneys) and deficiency of essence and blood. Different effects of lock yang take effect at different times, and lock yang and other drugs used in conjunction with the use and use alone will take effect at different times, in addition, because each person’s condition is not the same, so lock yang will take effect at different times. Therefore, how long it takes to drink lock yang to take effect depends on the specific situation of each patient, you need to consult a doctor or a professional pharmacist before using medication, reasonable use of medication.