Aim: To determine the indicators of adherence to drug therapy in young patients with arterial hypertension (АН) and the correlation between the indicators and therapy management.Materials and methods: The study enrolled 514 patients aged 25 to 45 years diagnosed with essential hypertension. We studied the structure of antihypertensive pharmacotherapy and adherence to treatment using the Moriski−Green test and the original questionnaire. The patients were distributed depending on the degree of blood pressure increase, administered treatment, age, economic factor, and drug source.Results: The adherence level by Moriski−Green test was 36.8%; according to the original questionnaire: high adherence level was 38.3%, incomplete adherence ― 33.7%, and poor adherence ― 28.0%. The monotherapy with ACE inhibitors predominated in the majority of cases; the fixed combinations were more typical for the treatment of the stage II AH, drug combinations ― for stage III AH. The highest therapy adherence was registered in patients with stage III AH receiving treatment with combinations of drugs in a single dosage form. The life quality of respondents and the drug source did not influence the adherence significantly.Conclusion: In young patients with arterial hypertension, some features of treatment structure determine the therapy adherence.