Children died from the most expensive drugs In Russia and Kazakhstan (https://bit.ly/3Pl31Yz), children died during the treatment of spinal muscular atrophy with Zolgensma. As stated in the message of the developer of the drug, the Swiss pharmaceutical company Novartis, the cause of death was acute liver failure (https://reut.rs/3C5BDdV). Death occurred after five to six weeks of infusion and one to ten days after starting to taper off corticosteroids (anti-inflammatory drugs), the report said. The age of children and their data are not given. At the end of last year, Novartis received permission to use the drug in Russia. This is the most expensive drug in the world, it costs $2.125 million.