Pharmaceuticals are chemical compounds used to treat or prevent diseases in human and veterinary medicine. Since they are omnipresent in our everyday lives, they very easily get into the environment. The primary route of their entry into the environment is through wastewater sources. Since even low concentrations of pharmaceuticals in the environment can have undesirable environmental and potential adverse effects on human and animal health, special attention is paid to the methods and efficiency of wastewater treatment. One of the ways of wastewater treatment is photocatalysis, which belongs to the advanced oxidation processes, and the initial step for photocatalysis is the sorption of pharmaceuticals on the surface of the photocatalyst. Pharmaceuticals whose sorption affinity is experimentally tested under various conditions in this study are imatinib and torasemide. Imatinib is a chemotherapeutic drug that has outstanding clinical activity in patients with chronic myeloid leukemia (CML) and malignant tumors of the gastrointestinal stoma (GIST). Torasemide is a Henle loop diuretic used to treat hypertension and edema in chronic heart failure, renal failure and cirrhosis. The sorption of the mixture of these two pharmaceuticals on a glass mesh with immobilized TiO2 was tested under different conditions of pH, temperature, catalyst mass and ionic strength. Based on R^2 values, sorption of both pharmaceuticals is under all conditions best described by a linear isotherm (R^2> 0.99), while in addition Langmuir and Freundlich isotherms were used to describe sorption of imatinib, and Freundlich and Dubinin-Radushkevich isotherms of torasemide. For all of the tested effects, torasemide has much lower distribution coefficient (Kd) values compared to imatinib, which means that imatinib has a higher affinity for sorption than torasemide.