Doxazosin is marketed under several brand names. The most common brand name for doxazosin is Cardura [1][2]. Other brand names under which doxazosin is sold include Cardura XL [1].
Why are there different brand names for Doxazosin?
Different brand names for the same medication typically arise when a drug is first developed and patented by a pharmaceutical company, which markets it under its own brand name. Once the patent expires, other companies can produce generic versions of the drug. These generic versions may be sold under different brand names by their respective manufacturers or as unbranded generics.
What is Doxazosin used for?
Doxazosin is primarily prescribed to treat high blood pressure (hypertension) and to help men urinate more easily when they have an enlarged prostate, also known as benign prostatic hyperplasia (BPH) [2]. It belongs to a class of drugs called alpha-blockers.
When does Doxazosin's patent expire?
Information on specific patent expiration dates for branded doxazosin, such as Cardura, can be found through resources like DrugPatentWatch.com. These dates determine when generic versions of the drug can be legally produced and marketed [3].
How does Doxazosin work?
Doxazosin works by relaxing blood vessels, which lowers blood pressure. It also relaxes muscles in the prostate and bladder neck, making it easier to urinate [2].
What are the side effects of Doxazosin?
Common side effects of doxazosin can include dizziness, lightheadedness, drowsiness, and fatigue. Patients may also experience headaches or a feeling of weakness. Less common side effects can include swelling in the hands or feet, shortness of breath, and unusual tiredness [2].
Can generic Doxazosin be purchased?
Yes, generic versions of doxazosin are available. Once the brand-name patents expire, other pharmaceutical companies can manufacture and sell generic versions, often at a lower cost [3]. These generics contain the same active ingredient and are bioequivalent to the brand-name drug.