isradipine vs propranolol
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Side-by-side comparison of isradipine and propranolol. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
Propranolol: In a single dose study in normal volunteers, co-administration of propranolol had a small effect on the rate but no effect on the extent of isradipine bioavailability. Significant increases in AUC (27%) and C max (58%) and decreases in t max (23%) of propranolol were noted in this study. propranolol to healthy volunteers under steady-state conditions had no relevant effect on either drug's bioavailability.
DynaCirc
Inderal
Isradipine is a drug that helps lower high blood pressure. It belongs to a class of drugs called calcium channel blockers.
Propranolol is a medicine that can help with high blood pressure, chest pain, and other conditions. It works by blocking the effects of certain natural chemicals in your body, like adrenaline, that affect the heart and blood vessels.
Isradipine capsules are used to treat high blood pressure. You can take it alone or with a thiazide diuretic (water pill). It may take 2 to 4 weeks to see the full effect.
Propranolol tablets can treat high blood pressure. It can be used alone or with other medicines. Propranolol can also help with chest pain (angina), control fast heart rate with atrial fibrillation, improve survival after a heart attack, prevent migraine headaches, and reduce tremors. It can also help with symptoms of some tumors.
Isradipine blocks calcium from entering certain cells. This action relaxes blood vessels, which lowers blood pressure. Lowering blood pressure helps prevent strokes, heart attacks, and kidney problems.
Propranolol is a beta-blocker. It works by blocking the effects of adrenaline on your heart and blood vessels. This helps to slow down your heart rate and lower your blood pressure.
- • Headache
- • Dizziness
- • Swelling in ankles or feet
- • Feeling your heart beat rapidly or irregularly
- • Fatigue
- • Tiredness
- • Dizziness
- • Nausea
- • Vomiting
- • Diarrhea
- Drug Interaction 32
- Dyspnoea 31
- Hypertension 29
- Acute Kidney Injury 26
- Nausea 26
- Nausea 4,279
- Headache 3,785
- Fatigue 3,752
- Diarrhoea 3,119
- Dizziness 3,102
If you are taking cimetidine, your doctor should watch you closely for side effects when you start isradipine. If you are taking rifampicin, isradipine may not work as well.
Propranolol is contraindicated in people with cardiogenic shock, very slow heart rate, asthma, or those who are allergic to it.
Tell your doctor if you are pregnant or plan to become pregnant. It is not known if isradipine will harm your unborn baby. Talk to your doctor about the risks and benefits of taking isradipine while breastfeeding.
Tell your doctor if you are pregnant or plan to become pregnant. Propranolol may affect your baby. Talk to your doctor about the risks and benefits of taking propranolol during pregnancy or while breastfeeding.
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How to Read This isradipine vs propranolol Comparison
isradipine is classified in the Calcium Channel Blocker drug class, while propranolol sits within the Non-Selective 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, isradipine has 144 submissions while propranolol has 18,037. 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 minor interaction flagged in FDA labeling, attributed to taking these drugs together may temporarily change how much medicine is in your blood, but this effect usually disappears after a few days of regular use.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for isradipine or propranolol.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.