Verapamil is a phenylalkylamine calcium channel blocker. Verapamil is a non-dihydropyridine calcium channel blocker used in the treatment of angina, arrhythmia, and hypertension. Verapamil may also be used for the prevention of migraines and cluster headaches. Verapamil Degradation impurity, Verapamil Process impurity, Verapamil Potential impurity, Verapamil USP Related Compound, Verapamil N-Nitroso impurity, Verapamil nitrosamine impurity etc. are listed below