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DILACOR XR vs NORVASC

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 19, 2026·How we rate

Possible drug interaction. DILACOR XR 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.

Rating

72/100
70/100

Pharmacy pays

~$9.18 /30
~$0.33 /30

Type

RX
RX

Active ingredient

DILTIAZEM HYDROCHLORIDE
AMLODIPINE BESYLATE

Manufacturer

Dosage forms

Capsule, extended release
Tablet

Drug class

Calcium Channel Blocker
Calcium Channel Blocker

Boxed warning

None
None

Half-life

about 3 to 4.5 hours
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 better-rated, Dilacor XR or Norvasc?

By our independent rating, Dilacor XR scores higher — 3.6 vs 3.5 out of 5 for Norvasc. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Dilacor XR or Norvasc?

Norvasc costs pharmacies less to acquire — about $0.33 vs $9.18 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 Dilacor XR and Norvasc?

Dilacor XR contains Diltiazem 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.