| Abbreviation | Definition |
|---|---|
| DDIS | Division of Drug Information Service |
| DDL | Drug Delivery to the Lungs |
| DDMAC | Division for Drug Marketing Advertising and Communications |
| DDMAC | Division of Drug Marketing Advertising and Communications |
| DDNS | Drug Discovery for the Nervous System |
| DDO | Drug Discovery Opinion |
| DDP | Drug Delivery Partnerships |
| DDPG | Drug Discovery Pathways Group |
| DDPS | Drug Data Processing System |
| DDR | Drug Demand Reduction |
| DDR | Drug Development and Regulation |
| DDRAC | Drug Demand Reduction Advisory Committee (Texas) |
| DDRS | Drug and Device Resource Service |
| DDRTF | Drug Demand Reduction Task Force (Department of Defense; est. 1992) |
| DDTD | Drug Discovery for Tropical Diseases |
| DDTE | Drug Delivery and Tissue Engineering |
| DDTF | Dubuque Drug Task Force |
| DDTQ | Daily Drug Taking Questionnaire |
| DDTU | Drug Dependence Treatment Unit |
| DDTY | Drugs Drug Targets and You |