According to the one called Dou Ding. Com, imported drugs are generally accompanied by invoices. Invoice is a formal transaction voucher generated when purchasing goods, including detailed information of goods, price, relevant information of buyers and sellers, etc. Whether domestic or imported drugs, suppliers or sellers will provide invoices as proof of purchase and financial records.
Invoices are very important for purchasing medicines. It can be used for reimbursement, applying for reimbursement of medical expenses, and recording the purchase and use of drugs. When purchasing imported drugs, suppliers should be required to provide invoices and keep them properly for future use. Please note that different countries and regions may have different invoice formats and regulations, but they usually contain necessary transaction information and tax information. If you have specific questions, it is recommended that you consult local tax or financial professionals for more accurate information.