泽泻是泽泻科多年生沼泽水生草本植物泽泻的球状块茎,其性寒,味甘、淡,入肾、膀胱经。此药甘淡可渗湿,性寒能泻肾及膀胱之热,为常用的利水渗湿泄热之药,临床常用治小便不利、水肿、泄泻、停饮等症。早在汉代,我国最早的中药典籍《神农本草经》中,还把泽泻列为延年益寿的上品,认为它有“养五脏、益气力、消水”的功能,“久服,耳目聪明,不饥延年”。 Alisma is a spherical tuber of Alisma aquatica, a perennial aquatic plant of Alisma orientalis. It is cold, sweet, and light, and enters the kidney and bladder. This medicine can be light and wet, cold and diarrhea, kidney and bladder heat, commonly used water diuresis and heat dissipation of the drug, the clinical treatment of urine is unfavorable, edema, diarrhea, stop drinking embolism. As early as the Han dynasty, the earliest Chinese herbal classic “Shen Nong Ben Cao Jing” also listed Alisma as the top grade of longevity, thinking that it has the function of “raising five internal organs, benefiting strength, eliminating water”, and Smart, not starving."