The need to create new sublingual tablets for the treatment of diseases of the oral mucosa is due to the insufficient number of domestic drugs on the pharmaceutical market. Therefore, the development of tablets based on thiotriazolin and decamethoxin, as a potentially new drug, for the treatment of diseases and the sanitation of the oral cavity in pathological conditions such as gingivitis, stomatitis, etc. is an urgent task for pharmacy and medicine.

The aim of the work is to develop a rational tablet composition, justify the choice of excipients in its composition and analyze the dosage form according to pharmaco-technological indicators in accordance with the requirements of the State Pharmacopoeia of Ukraine.

Materials and methods. Active substances – thiotriazolin and decamethoxin; excipients (based on microcrystalline cellulose, granulated sugars, glidants, lubricants and baking powders). During the study powder mixtures were tested for bulk density after compaction, fluidity and angle of natural slope. Further, the compressed series of tablets were tested for strength, disintegration and abrasion in accordance with the requirements of the State Pharmacopoeia of Ukraine.

Results. As a result of the research, we found that the manufactured series of tablets when assessing their pharmacokinetic properties do not have stable established indicators that are regulated by the State Pharmacopoeia of Ukraine. Therefore, an analysis of foreign and domestic literature sources was conducted regarding tablets containing decamethoxin as the active ingredient. Also, in the process of experimental research, a new composition of tablets based on thiotriazolin with decamethoxin by direct compression has already been developed and a comparative analysis of their pharmacokinetic properties has been conducted.

Conclusions. During the work, the choice of excipients was justified, the possibility of obtaining tablets by direct compression was experimentally confirmed, and their optimal composition was developed, which meets the basic requirements of the State Pharmacopoeia of Ukraine.