This maker of generic drugs for allergies, diabetes and pain reported 51% sales gains in 2010 and has continued strong this year with a 45% year-over-year increase in the most recent quarter. The company-which specializes in liquid and spray drugs and makes a popular generic version of the allergy medication Flonase-seems poised for continued growth: It currently has 13 pending generics applications at the Food & Drug Adminstration, addressing more than $1 billion in name-brand drug sales in 2010, according to IMS Health. Besides its generics division, Hi-Tech has two other segments: The health care products division sells branded over-the-counter products. And a line of magnesium supplements, acquired in 2010, has also contributed to sales.