There is no such thing as what medication works best for bitter mouth and yellow urine. If it is a physiological phenomenon, there is no need to use drugs. If it is caused by stomach fire (stomach fire and heat evil exuberance), liver and gallbladder fire, etc., you can be under the guidance of the physician ox-huang stomach-clearing pills, gentian liver pills and other drugs for treatment. 1. Niu Huang Qing Stomach Pill: composed of artificial Niu Huang, rhubarb, chrysanthemum, maitake and other medicines, it has the effect of clearing the stomach and diarrhea (removing the fire in the stomach), moistening the dryness and laxative effect, and it can be used for dizziness caused by fire in the stomach and heart, yellow tongue and urine, swollen and painful gums, etc. It is not recommended to take it for pregnant women. Pregnant women should not take. 2. Gentian and Liver Pill: It is composed of gentian, Chaihu, Scutellaria barbata, Gardenia jasminoides, Scutellaria baicalensis and other medicines, with the efficacy of clearing the liver and gallbladder and inducing dampness-heat, it can be used for the symptoms such as dizziness and redness (dizziness and redness of the eyes) caused by fire of the liver and gallbladder, tinnitus, deafness and yellowish of the mouth and urine. Attention to allergy to this product is prohibited, weak spleen and stomach should not be taken for a long time, pregnant women and those with stomach cold should be cautious, patients with severe chronic diseases, children, lactating mothers, old and weak spleen and loose stools (feces dilute and not shaped) should be taken under the guidance of a physician. Specific medication should be under the guidance of a physician, do not take medication without authorization, so as not to cause adverse reactions.