Multi-item Inventory Modeling for Generic Drug Inventory Control Planning Indrawati(a), Fitri Maya Puspita(a*), Siti Suzlin Supadi(b), Evi Yuliza(a)
(a)Mathematics Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University, South Sumatera, Indonesia.
*fitrimayapuspita[at]unsri.ac.id
(b)Institut of Mathematical Sciences, University of Malaya, Kuala Lumpur, Malaysia.
Abstract
Medicine is one of the primary needs needed for healing and rehabilitation of diseases in order to improve the level of welfare. One type of drug that is widely used is generic drugs because they are relatively cheap but have relatively the same effect as patented drugs. It is important for drug providers such as pharmacies to plan policies related to the supply of medicines so that the availability of medicines is optimal. Accumulation of drugs will cause losses because drugs have an expiration date, while a shortage of drug supplies will cause consumers to switch to other places. A pharmacy does not only manage or sell one type of generic drug but several types of drugs that have dependencies such as the same source of obtaining goods so that a model for multi-item inventory is needed. The purpose of this study is to build a multi-item inventory model for generic drug inventory control planning in pharmacies so as to produce an optimal inventory control planning decision.
