The health and well-being of children is in the first place in the social policy of any state. In relation to children with chronic diseases, a lot of state support measures are being developed, including preferential drug provision. What is more, the availability and volume of benefits for each individual child may affect the further prognosis of the disease, as well as the social and economic efficiency of the taken measures. The study showed that there are restrictions at all stages of the preferential drug provision. Most parents have low awareness of the child's right to benefits, as well as low legal activity in situations where the child's right is violated. A third of parents prefer not to use the benefit, fearing obstacles to its implementation. The availability of drug coverage is significantly higher for children eligible for a federal benefit than for those with a regional benefit.