Cough
"Taking benzonatate 2x 100mg - 3x day on my second day of use and no effect at all, not even confusion or dizziness others have commented on. The doctor didn&#039;t even think I was taking it when I went in for a follow up appointment. Also taking levofloxacin 500mg 1x day and magnesium oxide 2 hours after the levofloxacin."