The pharmaceutical industry is dedicated to the development, production and marketing of medicines for the treatment and prevention of diseases. For this reason, there is a growing need to improve the quality of its production processes in order to obtain a product that meets all quality standards and fully satisfies the customer. To achieve this satisfaction, the sector must use lean manufacturing tools to improve processes and control production. The objective of this study is to analyze and understand the importance and impact of implementing lean manufacturing tools, using the systematic literature review research method. By implementing this philosophy, a significant improvement in the manufacturing company is expected.