Drinking alcohol while taking Diosmin Tablets is not recommended because the main effect of Diosmin Tablets is to increase the venous valves and the elastic fiber layer of the veins to restore the elasticity of the veins and to promote the return of venous and lymphatic fluids, so as to reduce local swelling. And after drinking alcohol, alcohol will be metabolized to acetaldehyde, and acetaldehyde will dilate blood vessels, resulting in contrary to the action of Diosmin tablets, thus reducing the efficacy of Diosmin tablets. And at present, according to the evidence-based medicine, we can not find whether the two can react, so it is not recommended to drink alcohol when taking Diosmin Tablets, in order to avoid causing other side effects and reduce the efficacy of the drug.