Dry-powder inhalation (DPI) is a major drug delivery technology for the treatment of respiratory diseases as well as increasingly for systemic drug delivery. Providing a uniform dose in a portable, easy-to-use system, capsule-based DPI is a simple and cost-effective way to deliver medication via the pulmonary route. In collaboration with its customers, Capsugel® Zephyr™ gelatin and hypromellose (HPMC) capsules are customized to provide optimal performance between the capsule/device and capsule/formulation to achieve the highest safety and efficacy of the drug product.