This typically happens when atrial cells get irritated and stressed - the causes of that might include electrolyte imbalances, drugs like cocaine or methamphetamines, ischemic damage like a heart attack, or anything that increases sympathetic activity, like anxiety.

这通常发生于心房细胞受到激惹和应激时，原因可能包括电乱、使用可卡因或麻黄碱类药物、心肌梗死等缺血性损伤，或焦虑等增高交感神经活性的因素。

So you had options on the shelf, sold under many names and pseudoephedrine became the OTC nose-unclogger of choice through the 80s and 90s.

所以在货架上有很多选择，以很多名字出售伪麻黄碱在 80 年代和 90 年代成为非处方鼻塞治疗的首选。

There are other decongestants, like pseudoephedrine, which you can get by asking a pharmacist, like we mentioned earlier. And that works pretty well.

还有其他减充血剂，比如伪麻黄碱，可以让药剂师开带这种成分的药，像我们之前提到的，这种成分功效不错。

Before we had this restriction, pseudoephedrine was being used to fuel the methamphetamine processing in different areas of the country.

在实施这一限制之前，伪麻黄碱曾被用于制造甲基苯丙胺（冰毒），并在全国各地的非法实验室中被滥用。

And if I have a rougher case, it looks like I'm going to ask the drugstore to take out their keys, and open up their pseudoephedrine stash.

如果病情比较严重，我要让药店拿出他们的钥匙，打开他们隐藏的伪麻黄碱了。

The reason for this is that we have to document how much pseudoephedrine you're purchasing on a daily basis.

这是因为我们需要记录购买的伪麻黄碱数量。

They also recommended phenylpropanolamine and pseudoephedrine.

他们还推荐了苯丙醇胺和伪麻黄碱。

Why would I need to know how much pseudoephedrine you're buying in a day?

为什么我要知道一买了多少伪麻黄碱？

But even as manufacturers tried to straddle the lines, phenylaphrine sales this line, started to beat out this line: pseudoephedrine decongestants.

但是，即使生产商试图跨越这两条线，苯肾上腺素销售的这条线，还是开始打败了这条线：伪麻黄碱减充血剂。

In fact, it became popular because the standard over-the-counter decongestant, pseudoephedrine -the active ingredient in regular Sudafed-got locked up behind pharmacy counters.

事实上，苯肾上腺素之所以很流行，是因为标准的非处方减充血药伪麻黄碱——普通Sudafed(感冒药)的有效成分——被锁在药店柜台后面。

Cough and cold preparations may include an active ingredient called pseudoephedrine.

一些咳嗽和感冒药可能含有一种叫做伪麻黄碱的活性成分。

Pseudoephedrine blue, because it does work.

伪麻黄碱呈蓝色，因为它确实有效。

" In response to that, Congress in 2005 enacts the Combat Methamphetamine Act."

“作为回应，国会在 2005 年颁布了《打击脱氧麻黄碱法案》。”

This law, tacked on to the Patriot Act, largely meant pseudoephedrine decongestants were put behind the counter.

这项法律是《爱国者法案》的附加条款，在很大程度上意味着伪麻黄碱类减充血剂被置于柜台之后。

It is true that all this time I could have gone behind the counter and had pseudoephedrine, been less congested.

的确，在这段时间里，我本可以走到柜台后面，吃点伪麻黄碱，这样鼻子不会那么堵了。

And I started popping hydroxycut diet pills, the ones that had raw ephedrine in them.

我开始服用含有麻黄碱的羟基切割减肥药。

What did happen to the pseudoephedrine or the phenylpropanolamine?

伪麻黄碱或苯丙醇胺怎么了？

It was approved by the FDA a long time ago, and it's been shown that it doesn't really work at all, but it's still being sold as an alternative to pseudoephedrine.

该药品很久以前获得了美国食品药品监督管理局的批准，且已有证据表明它根本无效，但仍作为伪麻黄碱的替代品在市场上销售。

So I'm old enough to remember when they would sell it as the triple stack with ephedrine, but some people dropped dead and they took it off the market.

所以我记得当年它作为三重堆栈搭配麻黄碱出售的时候，但有些人因此猝死， 所以他们把它从市场上撤掉了。

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，服用安慰剂和苯肾上腺素后鼻塞也减轻。