OBJECTIVES: To obtain reliable information about the range of drugs used for pharmacotherapy of thyroid disease in Ukrainian hospitals. METHODS: Method of expert assessment is based on a complex of logical and mathematical-statistical analysis that allows to bring personal expert opinion into collective. Analyzed information is a basis for decision making. As object of research we chose primary information from questionnaires of expert assessments. The choice of drugs that were included into questionnaires was based on the basis of clinical protocols of care for patients with thyroid pathology, National Formulary of medicines in Ukraine (sixth edition). As experts were 65 endocrinologists from different medical institutions of Ukraine. RESULTS: Based on determination of coefficient competence (C_c) into our formed team of experts were included questionnaires of 60 specialists (C_c ≥ 1.5). We found that out of 35 drugs listed in questionnaire, doctors using in their practice 32 (91.4%). But only 20 drugs are prescribed by 30% of experts. Among the most important feature of drugs that affect prescriptions, doctors have identified the effectiveness of drugs (83%), followed - absence of side effects (43%). The prestige of trade name has a minimal value for endocrinologists (17%). Also it was found that most doctors give preference to information about drugs from materials of scientific conferences and to medical representatives. The least attention is paid to the National Formulary of medicines in Ukraine. CONCLUSIONS: Not full use of nomenclature drugs by doctors may be caused by insufficient informing of available medicines on the pharmaceutical market of Ukraine. The quality of treatment and prevention of such socially significant disease as thyroid pathology largely depends on the availability of drugs.