How to tell the true and false of Yi 'an Ning Pills and what is the packaging? does it look nice

Sometimes you can know the authenticity of drugs by packaging. This problem really needs attention. Drugs are very serious. Distinguishing the authenticity of Yi Anning depends on whether there is a patent number. It is recommended to choose formal channels to buy. At present, the regular Yi 'an Ning packaging is golden yellow. If there are other colors of packaging, it is basically counterfeit.