车前子主要有清热利尿、渗湿通淋、明目、祛痰等功效。 用于水肿胀满、热淋涩痛、暑湿泄泻、目赤肿痛、痰热咳嗽等病症的治疗。 需要注意的是，凡内伤劳倦、阳气下陷、肾虚精滑及内无湿热者慎服。
According to traditional Chinese medicine, all parts of the plant are medicine to cool heat and promote urination, cause diuresis, clear damp-heat, brighten the eyes and dislodge phlegm. .
