Calculate safe hydroxychloroquine (Plaquenil®) and chloroquine dosing with this professional medical calculator. Designed for healthcare providers to quickly determine appropriate medication doses based on current guidelines. Key Features: - Instant calculation of weight-based dosing (mg/kg/day) - Automatic conversion between metric and imperial units - Cumulative dose tracking for long-term medication use - Time-to-threshold calculations for retinopathy risk - Support for both hydroxychloroquine and chloroquine - Clear warnings when doses exceed recommended limits Evidence-based dosing guidelines from current literature This app is designed as a clinical decision support tool for healthcare professionals. Always use professional judgment and consult current clinical guidelines when making medical decisions. This calculator does not replace clinical expertise or official prescribing information. All calculations are performed locally on your device. No personal or patient data is collected or transmitted.