Callum Consultancy was founded by Patrick Crowley after retiring from GlaxoSmithKline as a Vice President in Pharmaceutical Development. Patrick Crowley brings over 40 years of experience in Dosage Form Development in R&D-based organizations. He has helped design and obtain regulatory approval for 15 commercial products; including NCE's, Line Extensions, Semi Synthetics, Fermentation products and a Biopharm product.