Along with its needing effects, a drug 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 medication, 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 medication. However, they may be more common with some of these medication than with others.
Check with your family doctor as soon as possible if any of the following side effects was happen
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
Rare
Bleeding, tender, or swollen gums; chest pain - may appear about 30 minutes after drug 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
More common side effects may occur that usually don't needed medical attention. These side effects may go away during treat as your body adjusts to the drug. However, check with your family doctor if any of the following side effects continue or are bothersome:
More common
Drowsiness - for flunarizine only; increased appetite andweight 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
More common side effects not listed above may also occur in some diseaseds. If you notice any other problems, check with your family doctor.