Beta-blockers like propranolol can decrease portal venous pressure and prevent complications.

诸如心得安之类的β受阻滞剂可以静脉压力，并预防并发症。

It was found fairly early on that a drug widely prescribed to control blood pressure in humans — a beta-blocker called Propranolol — could be used to prevent the reconsolidation of fear memories in rats.

在很早的时候就已经发现，一种广泛用于控血压的药——名为 “普萘洛尔” 的 β—受阻滞剂——在老鼠身上能阻止恐惧记忆的再巩固。