An Integrated Optimization Model for Medicine Order Distribution and Delivery Problem of Online Pharmacy Based on the Optimal Supply Chain Strategy

Abstract

The issue of health and medicine has always been very important. The volume of demand in the field of medicine is very high and is considered as one of the sensitive and vital products, so the accuracy in using the medicine and the accuracy of time of its use and access are among the strict requirements in the field of drug circulation. As we know, in order to achieve the best therapeutic effect and cure the disease, several drugs for a specific disease are usually used simultaneously. Therefore, an order which contains different types of medicines must be delivered on time, together and at the same time. By focusing on the supply chain, companies are experiencing significant reductions in healthcare costs. The purpose of this article is to provide a model and solution for online pharmacies through which chain costs can be optimized. In this regard, it is assumed that after the orders are received through the protocol in each period, a third-party logistics organization will collect the medicines required for each order from the physical pharmacies that have these medicines in their stock and transfer them to pharmacies that have the ability to send the medicines to the customer and a shipping fleet so that, considering logistical costs, orders are delivered to customers on time.