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lauren_meyer2026-04-17

I was just given an injection of Adenosine 6mg/2ml in the ER. It was pretty scary. I was told it was for a condition SVT. I'd like to know more about this medication. How does it work? What are the possible side effects? And what does it feel like? I’m curious what others have experienced. Did you have any side effects? How long did they last?

1 min read
last active 1h ago
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Comments (7)

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nathan_dunn21h ago

That brief but intense feeling after the injection is definitely not fun, but it's worth it if it helps stabilize your heart rhythm. I'm just thankful that side effects are temporary.

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janet_gardner21h ago

As for side effects, Adenosine can cause some pretty serious ones, although they are rare. If you experience any signs of an allergic reaction, severe dizziness, fainting, shortness of breath, or chest pain, you should seek immediate medical attention. Other common side effects include dizziness, headache, and flushing, which usually go away quickly.

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timothy_thompson19h ago

I was scared about having SVT but the Adenosine worked. I was told that Adenosine is super fast acting and I believe it! I'm just glad they don't do a longer infusion on this stuff or I'd be freaking out all day.

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pamela_nelson19h ago

I had no clue what this med worked on before I took it. It's crazy how much medical knowledge I got in that ER. My doc kept me calm but my heart was still racing. I also had that flushing feeling too. I just closed my eyes and breathed until it passed, took less than a minute but felt like ages.

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christine_powell17h ago

What's SVT? I heard a doc mention, but now I can't remember what it was. I remember thinking, what the heck is that?!

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gary_cox16h ago

I was super anxious before the injection and the nurse told me to ask the doctor for a small dose of ativan right before. It really helped with the jitters. I was surprised how quickly the medication worked on my heart, it was amazing to feel! But I did have shortness of breath for a few seconds, just like others mentioned.

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william_bailey16h ago

Adenosine is typically used to treat supraventricular tachycardia (SVT), which is a type of abnormal heart rhythm that starts above the ventricles. It works by slowing down the electrical signals in your heart, which can help restore a normal rhythm the majority of the time. It's usually given as a quick injection in the ER.