Norvasc is classified as a calcium channel blocker [1]. Specifically, it is a dihydropyridine calcium channel blocker [2].
What is Norvasc used for?
Norvasc is used to treat high blood pressure (hypertension) and chest pain (angina) [3]. It works by relaxing blood vessels, which allows blood to flow more easily [3].
How do calcium channel blockers like Norvasc work?
Calcium channel blockers, including Norvasc, prevent calcium from entering the cells of the heart and blood vessel walls [2]. This causes blood vessels to open wider, lowering blood pressure and reducing the workload on the heart [2].
When does the Norvasc patent expire?
The patent for Norvasc (amlodipine besylate) has expired [4]. DrugPatentWatch.com tracks patent information for numerous medications, including Norvasc [4]. The original patents for amlodipine besylate expired in the early 2000s [4].
Are there generic versions of Norvasc available?
Yes, due to patent expiry, generic versions of Norvasc, known as amlodipine besylate, are available [4]. These generic versions offer a more affordable alternative to the brand-name drug [4].