Cnidium & Notopterygium Combination (blood-regulating formula) Effects: dispelling stasis by freeing the collateral vessels; diffuse impediment and free yang to relieve pain. Indications: pain in the shoulders, arms, lumbus and legs induced by qi ,blood impediment or pain involving the whole body lasting for a very long time ATTENTION: do not use during pregnancy. Clinical Reference: This formula is often used in treating sciatica; tri-facial neuralgia; facial nerve paralysis; peripheral neuropathy; rheumatic arthritis; phlebitis; viral myocarditis; allergic purpura.