Irreversibly inhibits chymotrypsin but not trypsin by specifically reacting with histidine. Inhibits also other serine and cysteine protease such as bromelain, ficin and papain.

• 通过与组氨酸专一性反应，不可逆的抑制胰凝乳蛋白酶（但不含胰蛋白酶）。也抑制其他的丝氨酸和半胱氨酸蛋白酶，如菠萝蛋白酶、无花果蛋白酶和木瓜蛋白酶。