NORLIQVA vs TIAZAC

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Possible drug interaction. NORLIQVA and TIAZAC 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	NORLIQVA	TIAZAC
Rating	New	New
Pharmacy pays	~$0.33 /30	~$9.18 /30
Type	RX	RX
Active ingredient	AMLODIPINE BESYLATE	DILTIAZEM HYDROCHLORIDE
Manufacturer	Cmp Dev LLC	Bausch
Dosage forms	Solution	Capsule, extended release
Drug class	Calcium Channel Blocker	Calcium Channel Blocker
Boxed warning	None	None
Half-life	about 30 to 50 hours	about 3 to 4.5 hours
Treats	Variant Angina Pectoris, Coronary Artery Disease, Hypertension	Variant Angina Pectoris, Atrial Fibrillation, Atrial Flutter

norliqva tiazac

Rating

New

Pharmacy pays

~$0.33 /30

~$9.18 /30

Type

Active ingredient

AMLODIPINE BESYLATE

DILTIAZEM HYDROCHLORIDE

Manufacturer

Cmp Dev LLC

Bausch

Dosage forms

Solution

Capsule, extended release

Drug class

Calcium Channel Blocker

Boxed warning

None

Half-life

about 30 to 50 hours

about 3 to 4.5 hours

Treats

Variant Angina Pectoris, Coronary Artery Disease, Hypertension

Variant Angina Pectoris, Atrial Fibrillation, Atrial Flutter

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Frequently asked questions

Which is cheaper, Norliqva or Tiazac?

Norliqva 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 Norliqva and Tiazac?

Norliqva contains Amlodipine Besylate, while Tiazac contains Diltiazem Hydrochloride — 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.