What are the key GDP layout requirements to consider when designing or renovating a medicine warehouse?

The core design principles for a GDP-compliant warehouse layout are to ensure clear goods flows, prevent mix-ups and cross-contamination, and provide suitable storage conditions. Key layout requirements include: 1. **Functional zoning**: clearly separate, physically or by other effective means, areas such as goods receipt, quarantine pending examination, storage of released goods, non-conforming goods, returns, recalled goods and dispatch. 2. **One-way flow**: design sensible goods-flow routes so that, as far as possible, medicines move in one direction from receipt to dispatch, avoiding unnecessary backtracking and crossovers. 3. **Adequate space**: ensure that all areas have enough space for orderly storage and operations, avoiding excessive stacking or blocked passageways. 4. **Environmental controls**: areas requiring special storage conditions, such as refrigeration, protection from light or ventilation, should be specifically designed and equipped with suitable facilities. 5. **Security**: offices, rest areas and other non-operational areas should be separated from medicine storage areas. Storage areas for controlled medicines require additional security measures.