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.

很早时候就已经发现，一种广泛用于控制人体药——名为 “普萘尔” β—受体阻——老鼠身上能阻止恐惧记忆再巩固。

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

诸如心得安之类β受体阻可以降低门静脉力，并预防并发症。