Medical causes of impotence include diabetes and circulatory, neurological, or urological conditions. In independent studies, there are apparent differences in ADAS-Cog changes, improvement rate, dropouts, and incidence of side-effects among different classes of AChEIs; however, since the clinical protocols vary from one study to another, these results are not comparable and unreliable. Sulfamethoxazole may increase the QTc-prolonging activities of Azithromycin. The day I made the appointment, she fell four times, turned and gave me a look, and I knew. Concomitant strong CYP1A2 inhibitors (eg, fluvoxamine, ciprofloxacin, enoxacin): reduce Clozaril dose to one-third. Journal of Clinical Gastroenterology.