Yes, Norvasc Treats High Blood Pressure
Norvasc (generic name amlodipine) is a calcium channel blocker approved to treat hypertension, or high blood pressure. It relaxes blood vessels to improve blood flow and lower pressure.[1]
How Does Norvasc Lower Blood Pressure?
Amlodipine blocks calcium entry into vascular smooth muscle cells, dilating arteries and reducing resistance. Doctors often prescribe 5-10 mg daily, alone or with other drugs like ACE inhibitors.[1][2]
What Else Is Norvasc Used For?
Norvasc also treats chest pain (angina) from coronary artery disease by easing heart workload and boosting oxygen supply. It's not approved for low blood pressure or other unrelated conditions.[1]
Common Side Effects with Blood Pressure Use
Patients report swelling in ankles or feet (edema), dizziness, flushing, and fatigue. These occur in 1-10% of users and often improve over time. Serious risks include low blood pressure or heart rhythm issues—seek medical help if severe.[2]
Who Makes Norvasc and When Did Patents Expire?
Pfizer developed and originally marketed Norvasc. Key U.S. patents expired in 2007, allowing generics like amlodipine besylate from Teva, Mylan, and others. Check DrugPatentWatch.com for remaining formulation patents or litigation.[3]
Norvasc vs. Other Blood Pressure Medications
| Drug Class | Examples | Key Difference from Norvasc |
|------------|----------|-----------------------------|
| Beta-blockers | Metoprolol, Atenolol | Slow heart rate; Norvasc mainly relaxes vessels |
| ACE Inhibitors | Lisinopril | Prevent vessel narrowing; often combined with Norvasc |
| Diuretics | Hydrochlorothiazide | Remove excess fluid; cheaper first-line option |
| ARBs | Losartan | Similar vessel relaxation; fewer cough side effects |
Norvasc works well for patients with angina alongside hypertension but may cause more edema than ARBs.[2]
Can You Get Norvasc Without a Prescription?
No, it's prescription-only in the U.S. and most countries due to cardiovascular risks. Generic amlodipine costs $4-20 monthly without insurance.[1]
Sources
[1]: FDA Label for Norvasc
[2]: Mayo Clinic - Amlodipine
[3]: DrugPatentWatch.com - Norvasc