Which of the following is a common side effect of nifedipine?

A 50-year-old woman with hypertension is prescribed nifedipine by her primary care physician. Which of the following is a common side effect of nifedipine?

1.Peripheral edema
2.Agranulocytosis
3.Dilated cardiomyopath
4.Diabetes insipidus
5.Seizures

exp:

Calcium channel blockers such as nifedipine and diltiazem have the well-known side effect of peripheral edema.
There are 2 types of calcium channel blockers: dihydropyridine and non-dihydropyridine. The non-dihydropyridine family includes verapamil and diltiazem while the dihydropyridine includes amlodipine, nifedipine, nicardipine, isradipine, felodipine, and nisoldipine. The dihydropyridine CCBs are more selective for vasodilation while the non-dihydropyridine CCBs favor a depressive effect on the heart. Diltiazem has both effects. Other potential side effects of non-DHP CCBs include bradycardia, AV block, flushing, dizziness, and constipation.