dil·​ti·​a·​zem | \ dil-ˈtī-ə-(ˌ)zem \

Definition of diltiazem 

: a calcium channel blocker C22H26N2O4S used especially in the form of its hydrochloride as a coronary vasodilator

Examples of diltiazem in a Sentence

Recent Examples on the Web

The staff normally would have administered diltiazem, also known as Cardizem, that is used to steady an abnormal heart rate. Katie Thomas, New York Times, "Emergency Rooms Run Out of Vital Drugs, and Patients Are Feeling It," 1 July 2018 But diltiazem was out of stock, and when two other drugs — adenosine and metoprolol — didn’t work, Mr. Alsina was admitted overnight. Katie Thomas, New York Times, "Emergency Rooms Run Out of Vital Drugs, and Patients Are Feeling It," 1 July 2018 There isn’t any diltiazem, a one-time staple to treat rapid heart rate. Erika Fry, Fortune, "Critical Condition: Inside Pfizer’s Drug Supply Problem," 22 May 2018 Documents in the case showed that in 1998 Ben Venue Laboratories, an Ohio company that produced the heart medication diltiazem, paid GPO fees that exceeded half its sales on the drug. Phillip L. Zweig And, WSJ, "Where Does the Law Against Kickbacks Not Apply? Your Hospital," 7 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diltiazem.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of diltiazem

1975, in the meaning defined above

History and Etymology for diltiazem

probably from International Scientific Vocabulary dilator + benzothiazepin, tricyclic compound structurally similar to benzodiazepine + -m (as in diazepam)

Keep scrolling for more

Learn More about diltiazem

Dictionary Entries near diltiazem








Statistics for diltiazem

Look-up Popularity

Time Traveler for diltiazem

The first known use of diltiazem was in 1975

See more words from the same year

Keep scrolling for more

More Definitions for diltiazem


dil·​ti·​a·​zem | \ dil-ˈtī-ə-(ˌ)zem \

Medical Definition of diltiazem 

: a calcium channel blocker used especially in the form of its hydrochloride C22H26N2O4S·HCl as a coronary vasodilator — see cardizem

More from Merriam-Webster on diltiazem

Britannica.com: Encyclopedia article about diltiazem

Comments on diltiazem

What made you want to look up diltiazem? Please tell us where you read or heard it (including the quote, if possible).


a person who helps groups work together

Get Word of the Day daily email!

Test Your Vocabulary

Liar, Liar Quiz

  • alt-5761dbe2ba986
  • Someone who pretends to be sick in order to avoid work is a:
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!