The generic name for nitroglycerin is nitroglycerin itself [1]. It is not a brand name that has a different generic equivalent.
What is Nitroglycerin Used For?
Nitroglycerin is primarily used to treat and prevent chest pain, also known as angina, caused by a heart condition [2]. It works by relaxing and widening blood vessels, which increases blood flow to the heart muscle [2]. This medication is also used to manage high blood pressure during surgery and to treat a specific type of anal fissure, which is a small tear in the lining of the anus [3].
How Does Nitroglycerin Work?
Nitroglycerin is a vasodilator, meaning it relaxes smooth muscle in the walls of blood vessels [2][4]. This relaxation causes the vessels to widen, reducing the pressure within them and lowering the workload on the heart. For angina, this improved blood flow to the heart muscle relieves pain. In the case of anal fissures, it increases blood flow to the area, promoting healing [3].
What are the Different Forms of Nitroglycerin?
Nitroglycerin is available in several forms, including sublingual tablets and sprays that are placed under the tongue for rapid absorption, as well as extended-release capsules, ointments, and patches for longer-lasting effects [2]. Intravenous forms are also used in hospital settings [4].
When Does Nitroglycerin Go Off Patent?
As nitroglycerin is an established drug, its original patents have long expired. This means that generic versions of nitroglycerin have been available for many years from various manufacturers [1]. DrugPatentWatch.com tracks patent expirations for a wide range of drugs, and older, foundational medications like nitroglycerin are well past their patent-protected periods.
Who Makes Generic Nitroglycerin?
Numerous pharmaceutical companies manufacture generic versions of nitroglycerin. These include companies such as Teva Pharmaceuticals, Hikma Pharmaceuticals, and various other generic drug makers [1]. Because it is a widely prescribed medication with expired patents, it is readily accessible in generic form.