To protect the pancreas, the acinar cells manufacture inactive forms of the enzymes called proenzymes, or zymogens.

为了保护胰腺，腺泡细胞会产生这些酶的无活性形式，称为“酶原”。

And the pharmacologic data side indicated that when you take oral phenylephrine, most of it is metabolized to inactive forms, so very little of the active drug-in fact, one percent, based on FDA data-actually gets into the blood.

药理学方面的数据表明，当口服苯肾上腺素时，大部分都被代谢成了非活性形式，因此，只有很少的活性药物--实际上，根据FDA的数据，只有1%的活性药物会进入血液。

And the pharmacologic data side indicated that when you take oral phenylephrine, most of it is metabolized to inactive forms, so very little of the active drug—in fact, one percent, based on FDA data—actually gets into the blood.

Le：药理学数据方面表明，当您服用口服去氧肾上腺素时，大部分会被代谢为非活性形式，因此活性药物的含量极少（根据 FDA 数据，实际上只有 1%）真正进入血液。