| Dicyclomine (drug abuse) |
| Diphenoxylate (drug abuse) |
| Dipyridamole(drug abuse) |
| Diltiazem (drug abuse) |
| Doxine (drug abuse) |
| Droperidol (drug abuse) |
| diphenhydramine (drug abuse) |
| Desipramine (drug abuse) |
| Diazepam (drug abuse) |
| Diclofenac (drug abuse) |
| D-dimer |
| Delta aminolevulinic acid (D-ALA) |
| DHEA SO4 |
| Diazepam |
| Digoxin |
| Diphtheria Ab (IgG) |
| Direct immuofluorescence (DIF) |
| Dopamine |
| DU factor |
| Dysmorphic RBC |
