The company's strategy is now required in order for the corporation to respond to any environmental problems. The pharmaceutical industry has a great interest in analyzing the effectiveness of marketing communication of prescription drugs since prescription drugs represent the main source of income for the pharmaceutical industry. Marketing communication of prescription drugs is not aimed primarily at the consumer because they are not the ultimate decision makers to choose a particular drug for their disease, but at doctors who prescribe drugs from pharmaceutical manufacturers to patients. However, as the list of OTC drugs increases from the day, the problem is to position oneself in the minds of consumers and therefore there is a growing interest in analyzing the effectiveness of marketing communication of OTC drugs that is aimed at consumers. The main reasons for the increasing number of OTC medicines on the market are the transition of medicines from prescription to OTC due to the higher safety profile and the rapid development of the global generic market, which is why there are OTC medicines on the market of numerous pharmaceutical companies that contain the same active substance, i.e. have the same purpose and purpose. For the purpose of this thesis research on how people choose to purchase and use over-the-counter (OTC) medications was made using questionare.