If you take Wu Zi Diffractive Zong Pills for dry mouth and tongue it is recommended to consult a physician and should be discontinued if there is any serious discomfort. Wu Zi Derivative Pills, consists of Chinese wolfberry, dodder seed, raspberry, schizandra seed and psyllium seed. It is effective in tonifying the kidney and benefiting the essence (replenishing the kidney essence in the body). If the patient has severe symptoms of kidney yin deficiency, dry mouth and tongue may occur after taking it. Wu Zi Zhen Zong Pills are brown water honey pills or brownish-black large honey pills; sweet, sour and slightly bitter in taste. It can be used for impotence and infertility caused by kidney deficiency and essence loss, spermatorrhea and premature ejaculation, lumbago, and residual leaking after urination. This medicine should not be taken by patients with colds and fever, the adverse effects are not clear, avoid indigestible food during the period of taking, it is advisable to abstain from sexual intercourse. If you need to take it, it is recommended to consult a professional doctor.