Doxazosin er blevet administreret sammen med thiaziddiuretika, furosemid, beta- blokerende midler, antibiotika, orale hypoglykæmiske midler, urikosuriske midler eller antikoagulantia uden bivirkningersreaktioner.
Doxazosin has been administered together with thiazide diuretics, furosemide, beta-blocking agents, antibiotics, oral hypoglycaemic agents, uricosuric agents, or anticoagulants without adverse drug interactions.