Poria Four Reversals Tang is effective in benefiting qi and warming yang, inducing diuresis and removing dampness, and is useful in treating typhoid fever (a disease in which fever is caused by feeling cold) with sweating, and if it is lowered, the disease still remains unresolved and irritable. Poria Si Reverse Tang is composed of Poria, Ginseng, Radix et Rhizoma Ginseng, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Glycyrrhizae, and Radix et Rhizoma Ginger. In the formula, the Four Reversals Tang (Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Glycyrrhizae) restores Yang to save the body from fainting and unconsciousness by warming and tonifying Yang Qi. The combination of all the medicines can benefit the qi and warm the yang, and benefit the water and remove the dampness. The contraindications and adverse effects of Poria Four Reversal Soup are not clear, and should be used under the supervision of a doctor.