Lexiscan

(regadenoson)

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Allows you to complete a heart stress test without exercising.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

If your doctor recommends a stress test for your heart but you can't exercise on a treadmill or bike, Lexiscan (regadenoson) may be an option for you.

Quick facts about Lexiscan
  • Drug class: cardiovascular
  • Rx status: Prescription only
  • Generic status: No lower cost generic available

Upsides

  • Lexiscan (regadenoson) may be used when a person is not able to exercise enough to increase blood flow to their heart during a stress test.
  • Stress testing with Lexiscan (regadenoson) is noninvasive, which means it does not involve surgery.
  • Lexiscan (regadenoson) is a one-time, single dose.
  • Side effects of Lexiscan (regadenoson) usually go away within 30 minutes.
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What to expect from Lexiscan, on one page

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Downsides

  • Lexiscan (regadenoson) can cause discomfort which makes some people anxious. Let your medical team know if this worries you before your test.
  • You should avoid coffee, tea, chocolate, soda (including "caffeine-free" sodas), energy drinks, and some medications for at least 12 hours before getting Lexiscan (regadenoson). Your doctor should discuss with you what to avoid.
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What to expect from Lexiscan, on one page

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How it works

Lexiscan (regadenoson) during a stress echocardiogram makes you feel as if you've been exercising so that a special camera can take pictures of your heart.

Quick facts about Lexiscan
  • Drug class: cardiovascular
  • Rx status: Prescription only
  • Generic status: No lower cost generic available

Used for

  • Diagnostic aid

Dosage forms

  • Injection
Tried Lexiscan? Write a review!

What to expect when you take Lexiscan (regadenoson) for Stress test imaging

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  • Effectiveness
  • Full effects
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  • Possible side effects
  • Flushing
  • Nausea
  • Difficulty breathing
  • Headache
  • Chest discomfort
  • Dizziness
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Side effect rates for Lexiscan (regadenoson)

From 1337 clinical trials of Lexiscan when taken for stress test imaging (0.4 mg rapid iv injection)
  • Difficulty breathing
    28%28%
  • Headache
    26%26%
  • Flushing
    16%16%
  • Chest discomfort
    13%13%
  • Dizziness
    8%8%
  • Chest pain
    7%7%
  • Nausea
    6%6%
  • Abdominal discomfort
    5%5%
  • Bad taste in mouth
    5%5%
  • Feeling hot
    5%5%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Where we got our data »

The placebo bar shows how common a side effect was for people taking a sugar pill instead of Lexiscan.

Lexiscan (regadenoson)
Placebo

People taking Lexiscan felt side effect more

People taking Lexiscan felt side effect less

No difference

Risks and Warnings for Lexiscan (regadenoson)

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  • Your medical team will have equipment nearby in case you experience trouble breathing, low blood pressure (dizziness/lightheadedness), throat tightness, or a rash.