U.S. flag An official website of the United States government
  1. Home
  2. Drug Databases
  3. Drug Safety-related Labeling Changes

Drug Safety-related Labeling Changes (SrLC)

Get Email Alerts | Guide

CALAN (NDA-018817)

(VERAPAMIL HYDROCHLORIDE)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

Download Data

Expand all

09/14/2017 (SUPPL-33)

Approved Drug Label (PDF)

5 Warnings and Precautions

PRECAUTIONS

Drug Interactions

Addition of the following:

Ivabradine: Concurrent use of verapamil increases exposure to ivabradine and may exacerbate bradycardia and conduction disturbances. Avoid co-administration of verapamil and ivabradine.

Mammalian target of rapamycin (mTOR) inhibitors: In a study of 25 healthy volunteers with co-administration of verapamil with sirolimus, whole blood sirolimus Cmax and AUC were increased 130% and 120%, respectively. Plasma S-(-) verapamil Cmax and AUC were both increased 50%. Co-administration of verapamil with everolimus in 16 healthy volunteers increased the Cmax and AUC of everolimus by 130% and 250%, respectively. With concomitant use of mTOR inhibitors (e.g., sirolimus, temsirolimus, and everolimus) and verapamil, consider appropriate dose reductions of both medications.

08/24/2016 (SUPPL-32)

7 Drug Interactions

Ivabradine
  • Concurrent use of verapamil increases exposure to ivabradine and may exacerbate bradycardia and conduction disturbances.  Avoid co-administration of verapamil and ivabradine.