Diltiazem
Cardizem, Cardizem CD, Cardizem LA, Cartia XT, Matzim LA, Taztia XT, Tiazac, and many others including generics
Calcium channel blocker, antihypertensive
| C | 2 | Yes | Yes | No |
| Key |
- Tabs: 30, 60, 90, 120 mg
- Extended release tabs (for Q24 hr dosing):
- Various generics: 180, 240, 300, 360, 420 mg
- Cardizem LA: 120, 180, 240, 300, 360, 420 mg
- Matzim LA: 180, 240, 300, 360, 420 mg
- Extended release caps (for Q12 hr dosing): 60, 90, 120 mg
- Extended release caps (for Q24 hr dosing):
- Various generics: 120, 180, 240, 300, 360, 420 mg
- Cardizem CD, Taztia XT: 120, 180, 240, 300, 360 mg
- Cartia XT: 120, 180, 240, 300 mg
- Tiazac: 120, 180, 240, 300, 360, 420 mg
- Oral liquid: 12 mg/mL
- Injection: 5 mg/mL (5, 10, 25 mL)
There's more to see -- the rest of this topic is available only to subscribers.
Citation
Hughes, Helen K., and Lauren K. Kahl, editors. "Diltiazem." Harriet Lane Handbook Harriet Lane Handbook, 23rd ed., Elsevier, 2024. Harriet Lane, www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309523/2/Diltiazem.
Diltiazem. In: Hughes HKH, Kahl LKL, eds. Harriet Lane Handbook Harriet Lane Handbook. Elsevier; 2024. https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309523/2/Diltiazem. Accessed October 1, 2026.
Diltiazem. (2024). In Hughes, H. K., & Kahl, L. K. (Eds.), Harriet Lane Handbook Harriet Lane Handbook (23rd ed.). Elsevier. https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309523/2/Diltiazem
Diltiazem [Internet]. In: Hughes HKH, Kahl LKL, eds. Harriet Lane Handbook Harriet Lane Handbook. Elsevier; 2024. [cited 2026 October 01]. Available from: https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309523/2/Diltiazem.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Diltiazem
ID - 309523
ED - Hughes,Helen K,
ED - Kahl,Lauren K,
BT - Harriet Lane Handbook
UR - https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309523/2/Diltiazem
PB - Elsevier
ET - 23
DB - Harriet Lane
DP - Unbound Medicine
ER -

Harriet Lane Handbook

