Exhibit 21

SUBSIDIARIES OF THE REGISTRANT

The following is a list of subsidiaries of the Company as of March 31, 2011, omitting some subsidiaries which, considered in the aggregate, would not constitute a significant subsidiary.

Subsidiary	State of Incorporation or Organization	Ownership by Endo Pharmaceuticals Holdings Inc.
Endo Pharmaceuticals Inc.	Delaware	Direct
Endo Pharmaceuticals Solutions Inc.	Delaware	Indirect
HealthTronics, Inc.	Georgia	Direct
Penwest Pharmaceuticals Co.	Washington	Indirect
Generics International (US Parent), Inc.	Delaware	Indirect
Generics Bidco I, LLC	Delaware	Indirect
Generics Bidco II, LLC	Delaware	Indirect
Quartz Specialty Pharmaceuticals, LLC	Delaware	Indirect
Endo Pharma Canada Inc.	New Brunswick	Indirect
Endo Pharma Ireland Limited	Dublin	Indirect
Endo Pharma Delaware Inc.	Delaware	Indirect
CPEC LLC	Delaware	Indirect
IPI Management Corp.	Massachusetts	Indirect
Endo Pharmaceuticals Valera Inc.	Delaware	Indirect
Ledgemont Royalty Sub LLC	Delaware	Indirect
Generics International (US Holdco), Inc.	Delaware	Indirect
Generics International (US Midco), Inc.	Delaware	Indirect
Generics International (US), Inc.	Delaware	Indirect
Moores Mill Properties LLC	Delaware	Indirect
Wood Park Properties LLC	Delaware	Indirect
Vintage Pharmaceuticals, LLC	Delaware	Indirect