Zhen Wu Tang (True Warrior Decoction) — Herbal Remedy for Shao Yin kidney yang deficiency with water retention: edema (especially of limbs), heaviness of the body, dizziness, palpitations, abdominal pain, diarrhea, scanty urine. Modern: chronic nephritis, congestive heart failure, hypothyroidism with edema, chronic diarrhea | Living Netism

Named after the Dark Warrior of the North (associated with water and the kidneys), Zhen Wu Tang warms kidney yang and promotes water metabolism. It treats Shao Yin yang deficiency with water flooding: