Tell your doctor about all your current medicines and any you start or stop using, especially:
an antibiotic;
an antidepressant;
medicine to treat HIV or AIDS; or
sildenafil (Viagra) or other erectile dysfunction medicines.
This list is not complete. Other drugs may interact with doxazosin, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
 Doxazosin drug interactions (more detail)
