How long does it take to have an effect can’t be generalized, it needs to be judged according to the individual’s specific condition. How long it takes to take the tablets is determined by the degree of recovery and the individual’s ability to absorb the medication. Usually, if you use the right medication, the symptoms will improve in 3 to 7 days. Hetao Mingmu Tablet belongs to the name of Chinese patent medicine. It is composed of Pu Huang, Di Huang, Chrysanthemum and so on. It has the efficacy of cooling blood to stop bleeding (making blood cool and moist to prevent bleeding), tonifying yin to remove blood stasis, and clearing the liver to improve eyesight (clearing liver fire to promote the recovery of eyesight). It is used for fundus hemorrhage caused by yin deficiency and liver exuberance and heat injury to meridians. Adverse effects, contraindications and precautions of Hexue Mingmu Tablet are not known at present. When using medication, it is necessary to be guided by a traditional Chinese medicine practitioner to identify and use medication, do not use medication arbitrarily, so as to avoid adverse consequences.