Fu Ling Si Ni Tang (Poria Frigid Extremities Decoction) — Herbal Remedy for Yang collapse with palpitations and fluid retention: cold extremities, palpitations, irritability, scanty urine, diarrhea. Modern: heart failure with edema and cold extremities | Living Netism

Si Ni Tang with the addition of Fu Ling and Ren Shen for yang collapse with palpitations, irritability, and fluid retention. The added herbs address the water metabolism dysfunction and qi deficiency