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You are here : 3-RX.com > Drugs & Medications > Detailed Drug Information (USP DI) > Calcium Channel Blocking Agents : Side Effects

Calcium Channel Blocking Agents (Systemic)

Calcium Channel Blocking Agents | Before Using | Proper Use | Precautions | Side Effects | Additional Information

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Not all of the side effects listed below have been reported for each of these medicines, but they have been reported for at least one of them. Since many of the effects of calcium channel blocking agents are similar, some of these side effects may occur with any of these medicines. However, they may be more common with some of these medicines than with others.

Check with your doctor as soon as possible if any of the following side effects occur:

    Less common

      Breathing difficulty, coughing, or wheezing; irregular or fast, pounding heartbeat; skin rash; slow heartbeat (less than 50 beats per minute - bepridil, diltiazem, and verapamil only); swelling of ankles, feet, or lower legs (more common with amlodipine, felodipine and nifedipine)

    For flunarizine only - less common

      Loss of balance control; mask-like face; mental depression; shuffling walk; stiffness of arms or legs; trembling and shaking of hands and fingers; trouble in speaking or swallowing


      Bleeding, tender, or swollen gums; chest pain (may appear about 30 minutes after medicine is taken); fainting; painful, swollen joints (for nifedipine only); trouble in seeing (for nifedipine only)

    For flunarizine and verapamil only - rare

      Unusual secretion of milk

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

    More common

      Drowsiness (for flunarizine only); increased appetite and/or weight gain (for flunarizine only)

    Less common

      Constipation; diarrhea; dizziness or lightheadedness (more common with bepridil and nifedipine); dryness of mouth (for amlodipine and flunarizine only); flushing and feeling of warmth (more common with nicardipine and nifedipine); headache (more common with amlodipine, felodipine, isradipine, and nifedipine); nausea (more common with bepridil and nifedipine); unusual tiredness or weakness

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.

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Calcium Channel Blocking Agents: Precautions


Calcium Channel Blocking Agents: Additional Information

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