clonidine vs sotalol
Side-by-side comparison of clonidine and sotalol. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
moderate Known Drug Interaction
7.6 Clonidine Concomitant use with sotalol increases the risk of bradycardia and AV block. Because beta-blockers may potentiate the rebound hypertension sometimes observed after clonidine discontinuation, withdraw sotalol several days before the gradual withdrawal of clonidine to reduce the risk of rebound hypertension.
Recommendation: If you need to stop these drugs, your doctor should have you stop sotalol several days before you slowly lower your clonidine dose. Monitor your heart rate and blood pressure closely.
Clonidine (Catapres) is a medicine used to treat high blood pressure. It can be used alone or with other blood pressure medicines.
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.
Clonidine is used to treat high blood pressure. High blood pressure can lead to heart disease, stroke, and kidney problems. This medicine helps to lower your blood pressure to a safer level.
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.
Clonidine works in the brain to lower blood pressure. It tells your blood vessels to relax and widen. This makes it easier for blood to flow through your body, which lowers blood pressure.
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.
- • Dry mouth (occurs in about 40 out of 100 people)
- • Drowsiness (occurs in about 33 out of 100 people)
- • Dizziness (occurs in about 16 out of 100 people)
- • Constipation (occurs in about 10 out of 100 people)
- • Feeling sleepy or sedated (occurs in about 10 out of 100 people)
- • Feeling tired
- • Slow heart rate (less than 50 bpm)
- • Shortness of breath
- • New or worsening irregular heartbeats
- • Weakness
- Pain 3,038
- Tiredness 2,922
- Feeling sick to your stomach 2,918
- Headache 2,799
- High blood pressure 2,597
- Irregular heartbeat 1,178
- Shortness of breath 912
- Tiredness 867
- Feeling lightheaded 734
- Loose stool 719
If you suddenly stop taking clonidine, your blood pressure may increase. This can cause serious problems. Talk to your doctor before stopping this medicine.
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.
Tell your doctor if you are pregnant or plan to become pregnant. It is not known if clonidine will harm your unborn baby. Talk to 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.
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How to Read This clonidine vs sotalol Comparison
clonidine is classified in the Central Alpha-2 Agonist 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, clonidine has 14,274 submissions while sotalol has 4,410. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known moderate interaction flagged in FDA labeling, attributed to both of these medicines slow down your heart rate, which can cause your heart to beat too slowly. additionally, taking them together can cause a dangerous spike in blood pressure if the clonidine is stopped suddenly.. 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 clonidine 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.