ALLEGAN, MI (WHTC News) - Perrigo will be looking exclusively online to fill 100 positions by next February at its Allegan complex. Officials of the generic drug maker announced yesterday that only those who fill applications through the www.perrigo.com website will be considered for spots in a number of areas. Increased demand for Perrigo products has led the company to bolster its current Michigan workforce of around 35 hundred employees.