Good Manufacturing Practices (GMP) serve as the fundamental framework for quality management in the pharmaceutical industry. This review examines the World Health Organization (WHO) guidelines on cGMP, which are designed to minimize inherent risks in pharmaceutical production—specifically cross-contamination and false labeling. Unlike final product testing alone, cGMP integrates quality into every stage of the manufacturing process, from raw material procurement to final distribution. Key components explored include personnel training, facility design, equipment maintenance, and rigorous documentation. By analyzing the main principles of WHO Technical Report Series (TRS), this paper highlights how adherence to these international standards ensures that medicinal products are safe, efficacious, and of high quality, thereby safeguarding global public health.