Big wholesalers' influence up

Large drug wholesalers with sales grater than 200 billion won saw their combined market share continue to increase steadily in 2006, exerting influence on the overall wholesaling industry.

According to the tallies by the Tax Union, the combined sales of 89 wholesalers posted 5.2 trillion won last year, compared with 4.5 trillion won of 84 wholesalers in 2005.

Five wholesalers with great...