Unit I: 1. Controlled Drug Delivery Systems, 2. Polymers, Unit II: 3. Implantable Drug Delivery Systems, 4.Microencapsulation, 5. Mucosal Drug Delivery Systems, Unit III: 6. Gastroretentive Drug Delivery Systems, 7. Nasopulmonary Drug Delivery Systems, 8. Transdermal Drug Delivery Systems, Unit IV: Targeted Drug Delivery, Unit V: 10. Intrauterine Drug Delivery Systems, 11. Ocular Drug Delivery Systems.