CALAN vs NORVASC

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. CALAN and NORVASC are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	CALAN	NORVASC
Rating	New	70/100
Pharmacy pays	~$5.71 /30	~$0.33 /30
Type	RX	RX
Active ingredient	VERAPAMIL HYDROCHLORIDE	AMLODIPINE BESYLATE
Manufacturer	Gd Searle LLC	Viatris
Dosage forms	Tablet	Tablet
Drug class	Calcium Channel Blocker	Calcium Channel Blocker
Boxed warning	None	None
Half-life	about 2.8 to 7.4 hours after a single dose, rising to about 4.5 to 12 hours with repeated dosing	about 30 to 50 hours
Treats	Variant Angina Pectoris, Atrial Fibrillation, Atrial Flutter	Variant Angina Pectoris, Coronary Artery Disease, Hypertension

calan norvasc

Rating

New

70/100

Pharmacy pays

~$5.71 /30

~$0.33 /30

Type

Active ingredient

VERAPAMIL HYDROCHLORIDE

AMLODIPINE BESYLATE

Manufacturer

Gd Searle LLC

Viatris

Dosage forms

Tablet

Drug class

Calcium Channel Blocker

Boxed warning

None

Half-life

about 2.8 to 7.4 hours after a single dose, rising to about 4.5 to 12 hours with repeated dosing

about 30 to 50 hours

Treats

Variant Angina Pectoris, Atrial Fibrillation, Atrial Flutter

Variant Angina Pectoris, Coronary Artery Disease, Hypertension

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Frequently asked questions

Which is cheaper, Calan or Norvasc?

Norvasc costs pharmacies less to acquire — about $0.33 vs $5.71 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Calan and Norvasc?

Calan contains Verapamil Hydrochloride, while Norvasc contains Amlodipine Besylate — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.