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Calan SR: Oral tablet, extended release

Also see:
  • Reported side effects
  • Daily life interactions

Available Strengths
Drug Image file DrugItem_3117.JPG
Calan SR 240mg Caplet
Pfizer US Pharmaceuticals
Pill Identification: CALAN  |  SR 240
Drug Image file DrugItem_16740.JPG
Calan SR 120mg Caplet
Pfizer US Pharmaceuticals
Pill Identification: SR 120  |  CALAN
Drug Image file DrugItem_6185.JPG
Calan SR 120mg Caplet
Pfizer US Pharmaceuticals
Pill Identification: SR 120  |  CALAN
Drug Image file DrugItem_6186.JPG
Calan SR 180mg Caplet
Pfizer US Pharmaceuticals
Pill Identification: CALAN  |  SR 180
How This Drug Works
Calcium Channel Blocker
Calcium channel blockers slow the movement of calcium between cells to help the body improve blood flow and control heart rhythm.
Calcium channel blockers slow the movement of calcium between cells. This helps the body improve blood flow and control heart rhythm. Calcium helps the heart to pump and blood vessels change size. However, too much calcium can cause the heart to beat out of rhythm and make blood vessels narrower. As blood vessels narrow, less blood travels to the heart and it receives less oxygen. This causes the heart to pump harder to get the oxygen it needs. By getting in calciumâ¬"s way and slowing calcium flow between cells, calcium channel blockers restore normal heartbeat as well as normal blood and oxygen flow throughout the body.
Watch a Video Showing How This Drug Works

Frequently Asked Questions (FAQs) on Calan SR: Oral tablet, extended release

What is this medicine?

VERAPAMIL (ver AP a mil) is a calcium-channel blocker. It affects the amount of calcium found in your heart and muscle cells. This relaxes your blood vessels, which can reduce the amount of work the heart has to do. This medicine is used to lower high blood pressure.


What should I tell my health care provider before I take this medicine?

How should I use this medicine?

What if I miss a dose?

What may interact with this medicine?

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Drugs Related by Class to Calan SR: Oral tablet, extended release
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CVS Pharmacy Patient Statistics for Calan SR: Oral tablet, extended release
Usage by Gender
75.76%
24.24%
Generic vs. Brand Name Usage*
*Brand contains same active ingredient but may not represent FDA-approved generic equivalent
Usage by Age
0.0%
3.03%
15.15%
81.82%
In-Depth Information on This Drug
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  • Daily life interactions
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Patient Experiences with Calan SR

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Average Scores
Easy to Take 
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Works as Intended 
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Tolerable 
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