See the DrugPatentWatch profile for chlorthalidone
Chlorthalidone is available as a generic medication [1]. This means that multiple companies can manufacture and sell the drug, often leading to lower prices compared to its branded version [2].
When does chlorthalidone patent expire?
Drug patents, including those for chlorthalidone, provide market exclusivity for a specific period. After a patent expires, generic manufacturers can seek approval to produce their versions of the drug [3]. The exact expiration dates for chlorthalidone patents would need to be checked against specific patent filings.
Who makes generic chlorthalidone?
Numerous pharmaceutical companies produce generic versions of chlorthalidone. These manufacturers can include both large, established pharmaceutical companies and smaller, specialized generic drug makers. Availability may vary by region and pharmacy [1].
How does generic chlorthalidone compare to the brand name?
Generic chlorthalidone is bioequivalent to the brand-name version. This means it contains the same active ingredient, is absorbed by the body at the same rate and to the same extent, and is used for the same medical conditions [2]. Regulatory agencies, such as the U.S. Food and Drug Administration (FDA), require generic drugs to meet the same quality and safety standards as their brand-name counterparts [4].
What is chlorthalidone used for?
Chlorthalidone is a thiazide diuretic used to treat high blood pressure (hypertension) and fluid retention (edema) caused by conditions like heart failure, liver disease, and kidney disease [1]. It works by helping the body eliminate excess salt and water [5].
What are the side effects of chlorthalidone?
Common side effects of chlorthalidone can include dizziness, lightheadedness, fatigue, nausea, and increased urination. More serious side effects, though less common, may involve electrolyte imbalances (such as low potassium or sodium levels), kidney problems, or effects on blood sugar and cholesterol levels [1].
Where can I find more information on drug patents for chlorthalidone?
Information regarding drug patents, including their expiration and any related litigation, can often be found on specialized databases. DrugPatentWatch.com is a resource that provides data on pharmaceutical patents [3].
Sources:
[1] https://www.drugs.com/chlorthalidone.html
[2] https://www.fda.gov/drugs/generic-drugs/what-generics-and-how-do-they-work
[3] https://www.drugpatentwatch.com/
[4] https://www.fda.gov/about-fda/center-drug-evaluation-and-research-cder/difference-brand-name-and-generic-drugs
[5] https://medlineplus.gov/druginfo/meds/a682070.html