D & C Yellow No. 7 - Dyphylline
- D & C Yellow No. 7 - Darbid
- Daricon - Debrisoquin
- Debrisoquin Sulfate - Descarboethoxylorata
- Descarboxy-nor-n(ome - Dgg
- Dgs - Diethylthiambutene
- Diethyltryptamine - Dimboa
- Dimedazole - Dirithromycin
- Disipal - Dorzolamide
- Dotac Compound - Dst
- Dtc - Dyphylline