Sandoz launches generic versions of two Merck & Co. solutions

PRINCETON, N.J. Sandoz has introduced generic versions of Cosopt and Trusopt, Novartis' generics division announced Friday.

Merck & Co. makes the branded versions of Cosopt (dorzolamide and timolol sterile ophthalmic solution) and Trusopt (dorzolamide ophthalmic solution). Both are used to treat open-angle glaucoma and ocular hypertension.

Sandoz will market dorzolamide in the 20-mg-per-mL strength and dorzolamide/timolol with respective strengths of 20 mg per mL and 5 mg per mL.

Dorzolamide had U.S. sales of $49.5 million, and dorzolomide/timolol had sales of $323.9 million in 2008, according to IMS Health data.