Red gold anti-knot capsule has effect on menstruation. Red gold anti-knot capsule is a kind of Chinese patent medicine which has the effect of activating blood circulation and removing blood stasis. Women taking this drug during menstruation can cause an increase in the amount of menstrual blood and prolong the period, which can lead to menstrual cycle disorders, so it is not recommended to take this drug during menstruation. Red gold anti-knot capsule is mainly composed of golden buckwheat, Chaihu, Dahongpao, aniseed, Panax notoginseng and other traditional Chinese medicine, with blood circulation, eliminate blood stasis, reduce swelling and pain, dredge the liver and Qi soft, firm and disperse the effect of nodules, can be used to treat uterine fibroids, ovarian cysts, lobular hyperplasia of the breast and other diseases.