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In some countries, this medicine may only be approved for veterinary use.

In the US, Diltiazem (diltiazem systemic) is a member of the following drug classes: calcium channel blocking agents, group IV antiarrhythmics and is used to treat Angina Pectoris Prophylaxis, Atrial Fibrillation, Atrial Flutter, Heart Failure, High Blood Pressure, Raynaud's Syndrome and Supraventricular Tachycardia.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Antihypertensive agent

Treatment of coronary heart disease

Antiarrhythmic agent, class IV

Calcium channel blocker

Peripheric and coronary vasodilator

Chemical Name

1,5-Benzotiazepin-4(5H)-one, 3-(acetyloxy)-5-[2-(dimetylamino)etyl]-2,3-dihydro-2-(4-metoxyphenyl)-, (2S-cis)-

Foreign Names

  • Diltiazemum (Latin)
  • Diltiazem (German)
  • Diltiazem (French)
  • Diltiazem (Spanish)

Generic Names

  • Diltiazem (OS: BAN, DCIT, DCF)
  • Defemerin (IS)
  • Diltiazem Hydrochloride (OS: JAN, USAN, BANM)
  • CRD 401 (IS: Tanabe)
  • Diltiazem (chlorhydrate de) (PH: Ph. Eur. 8)
  • Diltiazem Hydrochloride (PH: BP 2016, JP XVI, USP 38)
  • Diltiazem hydrochloride (PH: Ph. Eur. 8)
  • Diltiazemhydrochlorid (PH: Ph. Eur. 8)
  • Diltiazemi hydrochloridum (PH: Ph. Eur. 8)

Brand Names


BANBritish Approved Name
BANMBritish Approved Name (Modified)
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name

Click for further information on drug naming conventions and International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.