The best effect is achieved by decoction of water, which is used in combination with other medicines, such as Cuscuta chinensis, Chuanjie, Cortex Eucommiae, etc. The active ingredients in the medicines are completely volatilized through decoction of water, which can achieve the best therapeutic effect. Cistanchis belongs to the yang tonic, sweet, salty and warm, belonging to the kidney, large intestine meridian, has the effect of tonifying the kidney and helping the yang, lubricating the intestines and laxative, clinically used for kidney yang deficiency, lack of essence and blood, male impotence and premature ejaculation, female cold infertility, lumbar and knee pain, impotence and weakness, or constipation due to the yang deficiency of the intestine, dryness and fluid depletion. The method of use is decoction with water, 10-15g/times. In clinical use, because this product can help yang slippery intestines, so it is not suitable for people with yin deficiency and fire and diarrhea, and it is not suitable for people with dampness and heat in the intestines and dry stools.