Correspondence published in The Lancet discusses the health impact of a 25 percent extraterritorial tariff shock in Iran[1][3][4]. Authors Reza Majdzadeh and Mohammad Reza Farzanegan warn that this tariff mechanism may violate Iranians' right to health by limiting access to essential medicines and medical technologies[5]. The correspondence focuses on a specific preventable harm—a problem that arises during a period of acute need and instability in Iran's health care system[5]. The authors acknowledge the humanitarian crisis facing Iran, but in this correspondence they concentrate on documenting and analyzing the impact of trade measures on the health sector[5]. A tariff shock could exacerbate already existing problems in Iran's health care system, including problems with the availability of drugs and medical technology[5].