For people unable to
exercise adequately
for a cardiac stress test

Before Your Test

Learn what to do
and what to avoid
Learn More

Got a question?

See what people
are asking
Learn More
Learn what to do
and what to avoid
Learn More
See what people
are asking
Learn More

Testing to see how your heart adapts to stress can tell doctors a lot about its health.

 

The heart is a specialized muscle. Like other muscles in your body, it needs oxygen and nutrients. The coronary (heart) arteries deliver oxygen and nutrients to your heart so that it can effectively pump blood throughout your body. People with heart disease may have 1 or more coronary arteries that have become narrowed or clogged over time by fatty deposits (also called plaques). These can decrease blood flow to the heart.

Some factors that may limit your ability to exercise during a stress test are:

injury

severe arthritis

back trouble

serious illness

Usage

What is Lexiscan?

Lexiscan® (regadenoson) injection is a prescription medicine that goes into your blood by an IV (intravenous) line. It increases blood flow through the arteries of the heart during a cardiac nuclear stress test. Lexiscan is used when a patient cannot exercise adequately for a stress test.

Important Safety Information

Who should not be given Lexiscan?

Lexiscan is not for everyone.

Lexiscan should not be given to patients who have certain abnormal heart rhythms, unless they have a pacemaker.

Lexiscan can cause serious or fatal cardiac arrest, abnormal heart rhythms, or heart attack.

Allergic reactions can occur after Lexiscan injection.

Lexiscan may cause an increase or decrease in blood pressure, especially in patients with certain heart and blood disorders.

What should I tell my doctor before receiving Lexiscan?

Tell your doctor if you:

  • Have a heart or blood vessel disorder
  • Have a respiratory disease, such as COPD (chronic obstructive pulmonary disease) or asthma, and what medicines you take for it.
Lexiscan can cause breathing difficulties
  • Have a history of seizures. Lexiscan can increase the risk of seizures

What are some of the possible side effects of Lexiscan?

Lexiscan can cause stroke, which may be a result of an increase or decrease in blood pressure.

The most common side effects that occurred in clinical trials of Lexiscan include:

  • Shortness of breath
  • Nausea
  • Headache
  • Abdominal discomfort
  • Flushing
  • A metallic taste in the mouth
  • Chest discomfort or chest pain
  • Feeling hot
  • Dizziness

These side effects began soon after receiving Lexiscan and went away in 15 to 30 minutes.

How do I prepare for a heart scan?

In the 12 hours before your heart scan:

  • Do not have any food and drinks that have caffeine in them
  • Do not take medicines that have caffeine, aminophylline, or theophylline in them

Ask your doctor if you should stop taking any medicines you usually take before the day of the test.

What about women who are nursing?

If you are nursing, be sure to pump and throw away breast milk for 10 hours after receiving Lexiscan.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

For further information, please talk to your healthcare professional and see accompanying full Prescribing Information for Lexiscan.

Usage and Important Safety Information

See More

Usage

What is Lexiscan?

Lexiscan® (regadenoson) injection is a prescription medicine that goes into your blood by an IV (intravenous) line. It increases blood flow through the arteries of the heart during a cardiac nuclear stress test. Lexiscan is used when a patient cannot exercise adequately for a stress test.

Important Safety Information

Who should not be given Lexiscan?

Lexiscan is not for everyone.

Lexiscan should not be given to patients who have certain abnormal heart rhythms, unless they have a pacemaker.

Lexiscan can cause serious or fatal cardiac arrest, abnormal heart rhythms, or heart attack. Allergic reactions can occur after Lexiscan injection.

Usage

What is Lexiscan?

Lexiscan® (regadenoson) injection is a prescription medicine that goes into your blood by an IV (intravenous) line. It increases blood flow through the arteries of the heart during a cardiac nuclear stress test. Lexiscan is used when a patient cannot exercise adequately for a stress test.

Important Safety Information

Who should not be given Lexiscan?

Lexiscan is not for everyone.

Lexiscan should not be given to patients who have certain abnormal heart rhythms, unless they have a pacemaker.

Lexiscan can cause serious or fatal cardiac arrest, abnormal heart rhythms, or heart attack.

Allergic reactions can occur after Lexiscan injection.

Lexiscan may cause an increase or decrease in blood pressure, especially in patients with certain heart and blood disorders.

What should I tell my doctor before receiving Lexiscan?

Tell your doctor if you:

  • Have a heart or blood vessel disorder
  • Have a respiratory disease, such as COPD (chronic obstructive pulmonary disease) or asthma, and what medicines you take for it.
Lexiscan can cause breathing difficulties
  • Have a history of seizures. Lexiscan can increase the risk of seizures

What are some of the possible side effects of Lexiscan?

Lexiscan can cause stroke, which may be a result of an increase or decrease in blood pressure.

The most common side effects that occurred in clinical trials of Lexiscan include:

  • Shortness of breath
  • Nausea
  • Headache
  • Abdominal discomfort
  • Flushing
  • A metallic taste in the mouth
  • Chest discomfort or chest pain
  • Feeling hot
  • Dizziness

These side effects began soon after receiving Lexiscan and went away in 15 to 30 minutes.

How do I prepare for a heart scan?

In the 12 hours before your heart scan:

  • Do not have any food and drinks that have caffeine in them
  • Do not take medicines that have caffeine, aminophylline, or theophylline in them

Ask your doctor if you should stop taking any medicines you usually take before the day of the test.

What about women who are nursing?

If you are nursing, be sure to pump and throw away breast milk for 10 hours after receiving Lexiscan.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

For further information, please talk to your healthcare professional and see accompanying full Prescribing Information for Lexiscan.