Very Popular Reaction (occurs within more than 10% of patients employing this medication): headache ( headache ). Common Reaction (occurs in between 1% and 10% of patients employing this medication): dizziness, confused vision, visual disturbances, cyanopsia (seeing blue coloring in most objects), hot flashes, flushing (redness), nose congestion, nausea (nausea), dyspepsia (poor