Kun säännöllistä doksatsosiinihoitoa saaneille potilaille annettiin samanaikaisesti sildenafiilia, joillakin potilailla raportoitiin oireista ortostaattista hypotensiota. ###>When sildenafil and doxazosin were administered simultaneously to patients stabilized on doxazosin therapy, there were infrequent reports of patients who experienced symptomatic postural hypotension.