Aim. To study the range, economic availability and consumption volumes of antiestrogens for the hormone therapy of ER(+) HER2(−) breast cancer.
 Materials and methods. The retrospective analysis of the range, as well as the analysis of changes in average retail prices, economic availability and consumption volumes of hormone therapy for ER(+) HER2(−) breast cancer presented at the pharmaceutical market of Ukraine in 2017-2022 were performed.
 Results. At the pharmaceutical market of Ukraine in 2017-2022, 3 INNs of anti-estrogens were presented during the entire period under study: tamoxifen (L02B A01), toremifene (L02B A02) and fulvestrant (L02B A03). The value of the solvency adequacy ratio (Ca.s.) of the population for each drug under research decreased at the end of the study period. For almost every trade name (TN) of the drugs studied during individual years, the Ca.s. indicator was slightly higher than in the previous period, but this was not systemic in nature and did not affect the general trend of decreasing Ca.s., which, in turn, indicated an increase in the affordability of all TN of antiestrogens studied for an average citizen of Ukraine. There is an overall clear trend towards a year-on-year decrease in the consumption of anti-estrogens mainly due to a decrease in the consumption of tamoxifen drugs, but there is a steady trend towards an increase in the consumption of fulvestrant.
 Conclusions. At the pharmaceutical market of Ukraine within 2017-2022, anti-estrogens for the hormone therapy of ER(+) HER2(–) breast cancer were presented by 3 INNs: tamoxifen, toremifene and fulvestrant. It has been found that for almost all drugs studied there is a steady trend towards increasing economic availability due to an increase in average wages, despite an increase in average retail prices. A trend towards a decrease in the consumption of drugs from the group of anti-estrogens has been determined mainly due to a decrease in the consumption of tamoxifen drugs.