CyDex Pharmaceuticals, Inc. is a specialty pharmaceutical company developing products and licensing its CAPTISOL® enabling technology. CyDex is developing its own pipeline of products using its enabling technology solutions, and partnering with leading pharmaceutical, specialty pharmaceutical and biotechnology companies. CyDex is a privately held company located in suburban Kansas City and was founded as CyDex L.C. in 1997.

Company was acquired by Ligand Pharmaceuticals Inc.