Strategic planning in the pharmaceutical market is key to effective medication supply. This requires the analysis of a large volume of market information, where forecasting plays an important role. It helps companies to develop assortment and pricing policies as well as promotion strategies. This is especially important for providing patients with depression— a socially significant disease that requires stable access to modern and safe antipsychotic medications. The relevance of the topic is connected with growing competition and market instability. Reliable forecasting models can enhance the efficiency of business processes and ensure uninterrupted drug supply. This approach will help companies optimize production and marketing.