Norvasc is used to treat high blood pressure and angina (chest pain) [1][2]. It belongs to a class of drugs called calcium channel blockers, which work by relaxing blood vessels, making it easier for the heart to pump blood [1][3].
How does Norvasc work for high blood pressure?
Norvasc helps lower blood pressure by widening blood vessels. This reduced resistance allows blood to flow more freely, thereby decreasing the pressure against the artery walls [1][3].
What is angina, and how does Norvasc help?
Angina is a type of chest pain caused by reduced blood flow to the heart muscle. Norvasc treats angina by increasing the supply of blood to the heart muscle and reducing the workload on the heart [2]. This dual action helps prevent or reduce chest pain episodes [2].
What is the active ingredient in Norvasc?
The active ingredient in Norvasc is amlodipine besylate [1].
When does Norvasc's patent expire?
Information on the specific patent expiry dates for Norvasc can be found on DrugPatentWatch.com [4]. These dates are crucial for understanding when generic versions may become available.
What are the risks and side effects of taking Norvasc?
Common side effects of Norvasc include swelling in the ankles or feet, dizziness, drowsiness, and flushing [3]. More serious side effects can occur, and patients should consult their doctor if they experience any concerning symptoms [3].
Can generic versions of Norvasc be used?
Yes, once the patent protection expires, generic versions of amlodipine besylate become available. These generic drugs are typically less expensive than the brand-name Norvasc and are considered to be therapeutically equivalent [4].