Nifedipine
Nifedipine, or BAY a 1040, is a first generation dihydropyridine L-type calcium channel blocker, similar to [nicardipine]. Nifedipine was developed by Bayer and first described in the literature, along with other dihydropyridines, in 1972. Since nifedipine's development, second and third generation dihydropyridines have been developed with slower onsets and longer durations of action. The most popular of the third generation dihydropyridines is [amlodipine].  Nifedipine was granted FDA approval on 31 December 1981.