Oriental Waterplantain Rhizome is the dried tuber of Alisma orientalis (Sam.) Juzep. (Fam. Alismataceae).

Action: To cause diuresis, and to remove damp-heat.

Indications: Edema with oliguria; diarrhea with diminished discharge of urine; vertigo due to retention of fluid; acute urinary infection with difficult painful urination; hyperlipemia.