One of the most popular decongestant ingredients is phenylephrine.

减充血剂最常见成分之一是苯肾腺。

Exactly. So, more products started using phenylephrine.

没错。于是更多的产品开始使用苯肾腺。

We'll make phenylephrine red because we know it leaves you congested.

我们会让苯肾腺的成像变红，因为我们知道它会让你充血。

And I always look to see if a decongestant like phenylephrine is in the capsule.

我总是看胶囊成分，是否含有像苯肾腺这样的减充血剂。

But I didn't know there was anything wrong with phenylephrine.

但我不知道苯肾腺有什么问题。

So, the committee voted unanimously that oral phenylephrine is basically useless.

因此，委员会一致认为口服苯肾腺缓解鼻塞的功效。

" 10 milligrams of phenylephrine works no better than a placebo."

“10 毫克苯肾腺的效果不比安慰剂好。”

Overall, though, if oral phenylephrine doesn't work, what should people use instead of it?

总的来说，如果口服苯肾腺不起作用，还有什么更好的替代品吗？

Scientists who advise the FDA recently concluded that phenylephrine, a common decongestant in cold medicines, doesn't work.

美国食品和药品管理局(FDA)的顾问科学家最近得出结论：感冒药中常见的减充血剂苯肾腺不起作用。

It led to further similarly conclusive studies that phenylephrine was ineffective.

这导致了进一步类似的结论性研究，即苯肾腺是效的。

She was on the recent FDA advisory panel earlier this month that made the decision that phenylephrine wasn't effective.

她是本月早些时候做出苯肾腺效决定的FDA顾问小组的专家。

The take-home messages are oral phenylephrine is inaffective as a nasal decongestant but safe.

带回家的信息是口服苯肾腺作为减充血剂是效的，但安全。

Exactly. In addition to that, three trials of oral phenylephrine showed it was no better than a placebo at relieving congestion.

确实如此。除此之外，口服苯肾腺的三项试验表明，这种成分在缓解充血方面不比安慰剂好。

Where nasal congestion went down after taking pseudoephedrine and went like this for a placebo and phenylephrine.

服用伪麻黄碱后鼻塞减轻，服用安慰剂和苯肾腺后鼻塞也减轻。

They didn't review phenylephrine nasal sprays.

刘易斯：他们没有审查去氧肾腺鼻喷雾剂。

They have known for decades that phenylephrine might not really work and it's just the process that's gotten in the way.

他们几十年前就知道苯肾腺可能没有真正起作用，只是这个过程阻碍了治疗。

And the panelists voting, they seemed a little mystified by how we got to a point where phenylephrine took over.

小组成员投票时，他们似乎有困惑，为什么我们会走到苯肾腺占据主导地位的地步。

Taken from an FDA Zoom meeting these are the votes of FDA panel members on whether phenylephrine is effective.

摘自 FDA Zoom 会议这些是 FDA 小组成员对苯肾腺是否有效的投票。

They didn't review phenylephrine nasal sprays. Those might still be effective since they are going right into your nose.

他们没有审查苯肾腺鼻腔喷雾剂的功效。这些成分可能仍然有效，因为它们直接进入了鼻腔。

Fischman: Overall, though, if oral phenylephrine doesn't work, what should people use instead of it?

Fischman：不过，总的来说，如果口服去氧肾腺不起作用，人们应该用什么来代替它？