Doxazosin is a medication that is commonly used to treat high blood pressure and urinary problems caused by an enlarged prostate. While the drug is typically referred to by its brand name, Cardura, there are several synonyms that may be used to refer to the medication. These synonyms include Doxadura, Doxaloc, Dozasin, and Zoxan. As with any medication, it is important to talk to your healthcare provider about any potential side effects or interactions with other medications you may be taking before using doxazosin or any of its synonyms. Your healthcare provider can also help you determine the appropriate dosage and frequency of use for your specific needs.