抗盐皮质激素(anti-mineralocorticoid、或称"醛固酮拮抗剂"(aldosterone antagonist)、醛固酮受体拮抗剂、醛甾酮拮抗剂)是指一种利尿剂能拮抗在盐皮质激素受体(Mineralocorticoid receptor)的醛固酮作用。

这类群的药物常被用作辅助治疗，配合其它药物用于治疗慢性心脏衰竭方面。螺内酯(Spironolactone)，该类群的第一种药品，也可用于高醛甾酮症(hyperaldosteronism)的治疗(包括康恩综合征(Conn's syndrome))及"女性多毛症"。

An antimineralocorticoid, or an aldosterone antagonist, is a diuretic drug which antagonizes the action of aldosterone at mineralocorticoid receptors. This group of drugs is often used as adjunctive therapy, in combination with other drugs, for the management of chronic heart failure. Spironolactone, the first member of the class, is also used in the management of hyperaldosteronism (including Conn's syndrome) and female hirsutism (due to additional antiandrogen actions). Most antimineralocorticoids, including spironolactone, are steroidal spirolactones. Finerenone is a non-steroidal antimineralocorticoid.