中医学
Sijunzi Tang Wan () also called the Four Gentlemen, is a brown pill used in Traditional Chinese medicine to "replenish qi and invigorate the functions of the spleen". It tastes slightly sweet. It is used where there is ""deficiency of qi" of the spleen and stomach marked by anorexia and loose bowels". SiJunzi Tang Wan is the base for many spleen qi deficiency formulas in Traditional Chinese medicine.