adenosine vs sotalol
Side-by-side comparison of adenosine and sotalol Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Adenosine (Adenocard) is a medicine used to treat certain types of irregular heartbeats. It belongs to a class of drugs called antiarrhythmics.
Sotalol is a medicine that helps keep your heart beating regularly. It can treat dangerous fast heartbeats and help prevent irregular heartbeats from coming back.
Adenosine is used to treat a very fast heart rate in the upper chambers of your heart. This condition is called supraventricular tachycardia (SVT). Adenosine helps to slow down your heart rate to a normal rhythm.
Sotalol is used to treat life-threatening fast heartbeats in the lower chambers of the heart. It is also used to help keep a normal heart rhythm in people with atrial fibrillation or flutter, which are types of irregular heartbeats in the upper chambers of the heart. Sotalol is for people who have very bothersome symptoms from their atrial fibrillation or flutter.
Adenosine works by slowing down the electrical signals in your heart. This helps to interrupt the fast heart rhythm and restore a normal heartbeat. It does this by acting on specific receptors in the heart tissue.
Sotalol works by slowing down the electrical signals in your heart. It has two actions: it blocks beta receptors (like a beta-blocker) and it prolongs the action potential duration in the heart. This helps to stabilize your heart rhythm and prevent irregular heartbeats.
No common side effects listed.
- • Feeling tired
- • Slow heart rate (less than 50 bpm)
- • Shortness of breath
- • New or worsening irregular heartbeats
- • Weakness
- The medicine did not work 327
- Using the medicine for a condition it is not approved for 98
- Very fast heart rate 94
- Low blood pressure 86
- Heart stops beating 78
- Irregular heartbeat 1,178
- Medicine not working 945
- Shortness of breath 912
- Tiredness 867
- Feeling lightheaded 734
Since this medication is administered by a healthcare provider in a monitored setting, there are no specific at-home warnings.
Sotalol can cause life-threatening irregular heartbeats. To lower this risk, you will start or restart sotalol in a hospital where your heart can be monitored. If your QT interval (a measure on your heart tracing) gets too long (500 msec or greater), your doctor may lower your dose or stop the medicine. Your doctor will check your kidney function to decide the right dose for you.
It is not known if adenosine can harm an unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. It is also not known if adenosine passes into breast milk, so discuss this with your doctor if you are breastfeeding.
Sotalol can harm your unborn baby, so talk to your doctor if you are pregnant or plan to become pregnant. Sotalol can pass into breast milk and may harm a nursing infant, so do not breastfeed while taking sotalol.
How to Read This adenosine vs sotalol Comparison
adenosine is classified in the Endogenous Nucleoside (Antiarrhythmic) drug class, while sotalol sits within the Class III Antiarrhythmic / Beta-Blocker class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, adenosine has 683 submissions while sotalol has 4,636. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between adenosine and sotalol — always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.