Do you have any exams coming up? prescription drug flagyl bank The sector's EBITDA margins, a measure of profitability, are the lowest in six quarters as of the June period. In the current year they are expected to rise only marginally to 21.5 percent from 20.7 percent in 2012, according to Thomson Reuters StarMine SmartEstimate data. In 2011, the average EBITDA margin for the sector was 22.6 percent.