1. Supernus Pharmaceuticals Inc.
2. Pfizer Inc
3. Novartis AG
4. Eli Lilly and Company
5. GlaxoSmithKline PLC
6. Johnson & Johnson
7. Hisamitsu Pharmaceutical Co. Inc.
8. Chongqing Fujin Biology Medical Company
9. Purdue Pharma LP
10. Mallinckrodt Pharmaceuticals