This presentation summarizes containers and closures used for pharmaceutical products. It defines containers as mechanisms for holding drugs and closures as protecting drugs from contamination. Types of containers discussed include well-closed, single-dose, multi-dosage, light-resistant, airtight, and child-resistant containers. Plastic and glass containers are described along with potential drug interactions. Biological tests for containers including systemic injection, intracutaneous, and eye irritation tests in mice and rabbits are summarized. The conclusion states that dosage form properties determine the suitable container and closure selection.