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What is Adenosine?

Adenosine is a naturally occurring chemical that dilates blood vessels and relaxes them. Adenosine can also alter the heart's electrical activity.Adenosine helps restore normal heartbeats in patients with certain heart rhythm problems.Adenosine is also utilized during a stress test for the heart.Adenosine can also be employed for other purposes that are not covered in this guideline.

Side Effects Of Adenosine

See a doctor immediately. If you are experiencing symptoms that indicate an allergic reaction, such as symptoms of hives, difficulty breathing, and swelling of your lips, face, or tongue,

Inform your caregivers immediately. If you suffer from:

  • Extreme breathlessness;

  • Tightness or chest pain, and pain that spreads into your shoulder or jaw;

  • Your chest is fluttering.

  • An euphoric feeling, similar to when you're about to pass out.

  • A seizure;

  • Extreme headache or blurred vision. the pounding of your neck or ears;

  • Suddenly numbness or weakness, visual problems, or speech.

Common negative side effects of adenosine include:

  • Flushing (sudden redness, warmth, or tingly sensation);

  • Chest pressure, breathlessness;

  • Nausea;

  • Headache, dizziness,

  • The jaw or neck.

This isn't a complete list of possible side effects, and other effects may also be present. Contact your physician for advice regarding medical effects. You can report any symptoms to the FDA at 1-800-FDA-1088.


Before taking adenosine for the first time, inform your doctor that you suffer from asthma or any other breathing issues or have ever experienced a seizure.

Before You Take This Drug

You shouldn't undergo treatment with adenosine when you have a serious heart issue like "sick sinus syndrome" or "AV block" (unless you have an implanted pacemaker) or heartbeats that are slow, which have resulted in you falling.

The doctor will run tests to determine if there are no problems that make it impossible for you to receive adenosine.

Inform your doctor if you have ever suffered from:

  • Asthma, COPD, bronchitis, emphysema, or other breathing problems;

  • Seizures;

  • Angina (chest pain).

It isn't clear if this medication could cause harm to a baby who is not yet born. Inform your doctor if you are expecting.Discuss with your doctor if you are breastfeeding. You might have to stop breastfeeding for a brief period of time after receiving adenosine.

How to Take Adenosine?

Prior to your heart-stress test Beware of tea, coffee, and chocolate. Also, avoid cola, energy drinks, and other sources of caffeinated beverages. They could affect the outcome of your heart stress test.Adenosine is administered as an injection into the vein. Your healthcare provider will offer you the injection.

You can only receive one dosage of this drug. It is possible to receive a second dose in order to help restore normal heartbeats.Your blood pressure, breathing levels, oxygen levels, and other vital signs will be closely monitored.

Your heart rate is continuously monitored by an electrocardiograph, also known as an ECG (sometimes known as the EKG). This will help your doctor decide how long to treat you with adenosine.

What Happens If I Miss The Dose?

Adenosine is usually administered as a one-time dose in a medical setting. It is not a requirement of a daily dose schedule.

What Happens If I Overdose?

Since adenosine can only be administered by a health expert in a medical environment, it is highly unlikely that an overdose will be a problem.

What Should Be Avoided?

Follow the instructions of your physician regarding any restrictions on your food, drink, or activity.

Interaction With Other Drugs

Inform your doctor about all other medicines you take, particularly:

  • Aminophylline;

  • Digoxin;

  • Dipyridamole;

  • Theophylline 

  • Verapamil.

This list isn't complete. Other drugs can interact with the adenosine receptor, including medications that are prescribed and available over the counter, vitamins, and herbal products. There are many possible interactions between drugs. are included here.



Prescription only

Pregnancy & Lactation

CSA Schedule*

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