Pharmaceutical industry is on the one side highly dependent on environment and on the other side, it is one of the major environmental pollutants. It pollutes it from input materials, the use of a variety of chemicals, development and clinical trials, the promotion of excessive consumption of medicines to the management of waste medicines and other wastes that arise throughout the entire process in the pharmaceutical industry. Because industry, together with development, means the continuous exploitation of natural resources, the only possible development is sustainable development, which emphasizes economic growth with coherent action in three areas: economy, environment and social development. At the introduction of the master's thesis we present the beginnings of the pharmaceutical industry in one of the Slovenian regions, define three aspects of sustainable development - economic, socio-cultural and environmental aspect, more precisely sustainable development and waste, and we present pharmaceutical company X, which deals with production of generic medicines. In thesis, we present their environmental policy and employees, in particular their education on sustainable development and waste, and their management of waste. Then follows the empirical analysis of the survey questionnaire, which was implemented among employees of the production in company X and a comparison of our own findings with findings from the company's annual report on sustainable development. In the conclusion of the thesis, some sustainably targeted measures are given to company X for easier transition to green, circular economy.