Drug facts

Molecule

Diltiazem (Cardizem)

Generics already compete: 26 makers on the market. 122 A-rated products from 25 makers substitute at the counter.

Cardizem was first approved by the FDA on 11/05/1982 under NDA 018602; the application holder is Bausch Health US LLC.

The latest NADAC for DILTIAZEM 60 MG TABLET is $0.07 per unit (as of 10/28/2026).

Holder Bausch Health US LLCApplication NDA 018602Approved 11/05/1982

01Patents and exclusivity

When competition can legally begin. A generic can launch once both exclusivity and the last listed patent expire, unless a court or settlement says otherwise.

Latest patent
No Cardizem patent listed in the Orange Book
Orange Book

02Competition

Generics
26 generic makers
Orange Book
First generic approved
11/05/1992
Orange Book
Every listingEach listing and maker behind the generics count.
Price erosionHow NADAC moves as generics enter.
PrescribersWho prescribes it, from Medicare data.
Available in the full Diltiazem profile.See what is included

03Supply and price

FDA drug shortage
ClearNot on the current shortage list
FDA shortages
NADAC
$0.07 per unitDILTIAZEM 60 MG TABLET, mid-priced of 4 strengths, as of 10/28/2026
CMS NADAC
Latest recall
03/13/2025Class II, Diltiazem Hydrochloride, Glenmark Pharmaceuticals Inc., USA
FDA enforcement

04Product

Application holder
Bausch Health US LLC
Orange Book
Application
NDA 018602
Orange Book
First approved
11/05/1982
Orange Book
Dosage forms
capsule, extended release; injectable; solution; tablet; tablet, extended release
Routes
injection, intravenous, oral
Other brand names
Cardizem CDCardizem LACartia XTTiazac

Sources: FDA Orange Book, FDA Purple Book, FDA drug shortages, FDA enforcement reports and CMS NADAC, read through QOPE. Not medical or legal advice.