Our Story

Callan Pharma Services was founded in 2023, but the story begins years earlier. Callan’s founders, Dr. Sill and Dr. Sullivan, began working together in 2019 on an approved product reformulation project. Recognizing a deficiency in available technologies, they invented the Apisolex™️ technology, an injectable-grade excipient developed to enhance the solubility of poorly water-soluble drugs, which is now being advanced by Lubrizol. Dr. Sill and Dr. Sullivan formed Callan Pharma Services to help clients solve challenging formulation problems using lessons learned from a collective 30+ years in the industry.