Amlodipine Camsylate and its Impurities

Amlodipine Camsylate is commonly used in the treatment of high blood pressure and angina. it, initially approved by the FDA in 1987, is a popular antihypertensive drug belonging to the group of drugs called dihydropyridine calcium channel blockers.  Reference standards of Amlodipine Camsylate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.