The continuous and increasing pollution of water is one of the most pressing environmental problems in the world. A special type of contaminants are pharmaceutical products, that are ever more discovered in the environment, significantly affecting the quality of life. The increasing use of human and veterinary pharmaceutical products, accompanied by their infiltration into the aquatic and terrestrial environment, requires urgent solutions for the immobilization and removal of this category of pollutants. Adsorption is one of the most effective and practical techniques for removing pollutants from water. The use of carbonic adsorbents in water treatment technologies is justified by the fact that activated carbons are able to remove almost entirely a very wide spectrum of pollutants. In the Ecological Chemistry laboratory of the Institute of Chemistry, using different methods and conditions of activation, a set of activated carbons was obtained in order to identify samples with potential of use for the immobilization and removal of pollutant substances from aquatic systems. In this research were studied the adsorption parameters of vitamins B3 (Nicotinic acid, C6H5NO2, MM 123.11) and B6 (Pyridoxine, C8H11NO3, MM 169.18) on four samples of autochthonous activated carbon (CAS-23, obtained from peach kernels; CAN-8, obtained from walnut shells; AC-MR, obtained from apple wood, AC-C, obtained from apricot kernels). The influence of initial concentrations of adsorbates, contact time, temperature, granulometric compozition and surface parameters of carbons on the adsorption process were investigated. The research of the influence of the granulometric composition of carbon adsorbents on the adsorption capacity of vitamins showed a considerable increase (about 30%) of the adsorption power value with the decrease of the carbon particle size (from 800-2000 μm to 90-125 μm). The adsorption kinetic curves were determined in a time interval between 10-300 minutes at 25°C. The obtained data shows that the amount of immobilized vitamins on investigated carbon adsorbents growths with increasing contact time between vitamins solution and carbon adsorbent surface. It was found that the equilibrium of the adsorption process was achieved after 3 hours of stirring/contacting. The adsorption isotherms of vitamins on local carbon adsorbents were determined at three values of temperatures (25°C, 35°C and 45°C). According to the obtained data the increase of the temperature is accompanied by the decrease of the amount of immobilized adsorbate for all studied carbon samples. The adsorption capacity of the autochthonous carbon adsorbents towards investigated vitamins was determined from their adsorption isotherms. The obtained results are in accordance with the method of obtaining of researched carbons and their structural parameters, being obvious the advantage of samples AC-MR and AC-C, which showed the highest adsorption values: about 0.9 mmol/g. The adsorption values of CAN-8 and CAS 23 samples indicated near 0.65 mmol/g. The realized research shows that pharmaceuticals such as vitamins B3, B6 can be effectively removed from aqueous solutions using autochthonous activated carbon, obtained from the local vegetable raw materials.