See the DrugPatentWatch profile for Nifedipine
The primary brand name for nifedipine tablets is Procardia, with Procardia XL being a common extended-release formulation [1].
What other brand names are associated with nifedipine?
Adalat is another significant brand name for nifedipine, with variations like Adalat CC and Adalat PA also available, indicating different release mechanisms [1].
When do the patents for nifedipine brands expire?
The original patents for nifedipine brands have long since expired, allowing for the widespread availability of generic versions. For instance, the patent for the original Procardia expired many years ago. The expiration of patents opens the door for generic manufacturers to produce and market their own versions of the drug [2]. DrugPatentWatch.com tracks patent timelines for pharmaceuticals.
How does generic nifedipine compare to brand-name versions?
Generic nifedipine products are designed to be bioequivalent to their brand-name counterparts, meaning they contain the same active ingredient and are absorbed by the body in a similar way. Regulatory bodies like the U.S. Food and Drug Administration (FDA) approve generic drugs after rigorous review to ensure they meet the same standards of safety, efficacy, and quality as brand-name drugs [3].
What are the different uses for nifedipine tablets?
Nifedipine is primarily prescribed to treat high blood pressure (hypertension) and chronic stable angina (chest pain caused by reduced blood flow to the heart) [4]. It works by relaxing blood vessels, which lowers blood pressure and makes it easier for the heart to pump blood [5].
What are the common side effects of nifedipine?
Common side effects reported for nifedipine include swelling in the hands or feet, headache, dizziness, flushing, fatigue, and nausea [4]. These side effects are generally mild and may lessen as the body adjusts to the medication.
Can nifedipine be used for other conditions?
While primarily used for hypertension and angina, nifedipine may be prescribed off-label for other conditions, such as Raynaud's phenomenon and preterm labor, due to its vasodilating properties [5]. However, its use for these indications is not as widely established.
Where can I find more information on nifedipine patents?
DrugPatentWatch.com provides comprehensive data on drug patents, including expiration dates and patent challenges, which can be a valuable resource for understanding the patent landscape of medications like nifedipine [2].
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Sources:
[1] https://www.drugs.com/cdi/nifedipine.html
[2] https://www.drugpatentwatch.com/
[3] https://www.fda.gov/drugs/generic-drugs/what-generic-drug-biosimilar-biological-product
[4] https://www.nhs.uk/medicines/nifedipine/
[5] https://www.rxlist.com/consumer_nifedipine/drugs-medications.htm