Flutter-Based System for Managing Pharmacy Inventory and Patient Health Alerts

The pharmaceutical sector increasingly requires digital solutions that combine accurate inventory control with proactive patient health monitoring. This paper presents a Flutter-based cross-platform mobile application designed to streamline pharmacy inventory management and deliver real-time patient health alerts. The proposed system integrates an inventory tracking module, an expiry-date alert engine, a drug-interaction checker, and a patient health profile manager into a single, unified platform. Firebase Realtime Database serves as the backend, enabling instant synchronization of stock data across multiple devices. The system employs role-based access control to distinguish between pharmacist, admin, and medical-staff accounts. Experimental evaluation demonstrates that the application reduces medication dispensing errors by notifying users of low-stock, near-expiry drugs, and potential drug interactions before dispensing. The cross-platform nature of Flutter ensures the solution runs seamlessly on both Android and iOS without separate code bases, significantly reducing development cost and deployment time. Results indicate a marked improvement in inventory accuracy and patient safety compliance compared with manual and legacy software approaches.